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  1. 961
    Development and use of foothill ranges in Utah /

    Development and use of foothill ranges in Utah / by Cook, C. Wayne

    Published 1966
    Book
  2. 962
    A handbook for the program of man and the biosphere in the United States /

    A handbook for the program of man and the biosphere in the United States /

    Published 1977
    Book
  3. 963
    Life in the geyser basins /

    Life in the geyser basins / by Brock, Thomas D.

    Published 1971
    Book
  4. 964
    Universidad de utopía /

    Universidad de utopía / by Hutchins, Robert M. 1899-1977‏

    Published 1961
    Book
  5. 965
    Wonderful life : the Burgess Shale and the nature of history /

    Wonderful life : the Burgess Shale and the nature of history / by Gould, Stephen Jay

    Published 1990
    Book
  6. 966
    Un estudio acerca del impacto económico de las visitas a los Parques Nacionales en Estados Unidos de Norteamérica /

    Un estudio acerca del impacto económico de las visitas a los Parques Nacionales en Estados Unidos de Norteamérica / by Swanson, Ernst Werner. 1904-

    Published 1974
    Book
  7. 967
    Teton trails : a guide to the Trails of Grand Teton National Park /

    Teton trails : a guide to the Trails of Grand Teton National Park / by Harry, Bryan

    Published 1971
    Book
  8. 968
    Recreation Symposium proceedings /

    Recreation Symposium proceedings /

    Published 1971
    Conference Proceeding Book
  9. 969
    Progress Report 1970-71 /

    Progress Report 1970-71 /

    Published 1972
    Book
  10. 970
    McDonald's : la empresa que cambió la forma de hacer negocios en el mundo /

    McDonald's : la empresa que cambió la forma de hacer negocios en el mundo / by Love, John F.

    Published 1987
    Book
  11. 971
    Distribution and abundance of the American alligator, Alligator mississippiensis, in the welder wildlife refuge, Texas /

    Distribution and abundance of the American alligator, Alligator mississippiensis, in the welder wildlife refuge, Texas / by Altrichter, Mariana

    Published 1999
    Book
  12. 972
    Ecology of groundwater in the southwestern United Stated /

    Ecology of groundwater in the southwestern United Stated /

    Published 1965
    Conference Proceeding Book
  13. 973
    Tierras áridas y el hombre : El reto de las tierras áridas de los Estados Unidos /

    Tierras áridas y el hombre : El reto de las tierras áridas de los Estados Unidos /

    Published 1963
    Book
  14. 974
    The ancient bristlecone pine forest /

    The ancient bristlecone pine forest / by Johnson, Russ 1916-

    Published 1966
    Book
  15. 975
    Family tree of the National Park System /

    Family tree of the National Park System / by Lee, Ronald F.

    Published 1972
    Book
  16. 976
    Bioecology of the arid and semiarid lands of the Southwest /

    Bioecology of the arid and semiarid lands of the Southwest /

    Published 1961
    Conference Proceeding Book
  17. 977
    Trees of the Eastern and Central United States and Canada /

    Trees of the Eastern and Central United States and Canada / by Harlow, William M.

    Published 1957
    Book
  18. 978
    JOURNAL OF THE IOWA ACADEMY OF SCIENCE. JIAS

    JOURNAL OF THE IOWA ACADEMY OF SCIENCE. JIAS

    Published 1993
    Get full text
    Serial
  19. 979
    THE DODO, JOURNAL OF THE WILDLIFE PRESERVATION TRUSTS

    THE DODO, JOURNAL OF THE WILDLIFE PRESERVATION TRUSTS

    Published 1984
    Get full text
    Serial
  20. 980
    Eco' 92: Bush llegará el 11 sin cambios en la posición de EE.UU.

    Eco' 92: Bush llegará el 11 sin cambios en la posición de EE.UU.

    Article

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