- PARQUES Y RESERVAS NACIONALES 65
- CIENCIAS NATURALES 62
- AREAS PROTEGIDAS 55
- MANEJO DE PARQUES Y RESERVAS 14
- RESERVAS NATURALES 7
- CONSERVACION DE LA NATURALEZA 5
- FAUNA 4
- POLITICA AMBIENTAL 4
- AVES 3
- BIOGEOGRAFIA 3
- CONGRESOS 3
- ECOSISTEMAS 3
- RECURSOS NATURALES 3
- RESERVAS DE LA BIOSFERA 3
- ARBOLES 2
- AREAS MARINAS PROTEGIDAS 2
- AREAS NATURALES 2
- AREAS NATURALES PROTEGIDAS 2
- BIODIVERSIDAD 2
- BOSQUES 2
- FLORA 2
- GEOLOGIA 2
- LAGOS 2
- LEGISLACION 2
- LEGISLACION AMBIENTAL 2
- MAMIFEROS 2
- MANEJO DE AREAS NATURALES 2
- MEDIO AMBIENTE 2
- MONTAÑAS 2
- NATURALEZA 2
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1
Parque Nacional Lihué Calel, conociendo su avifauna
Article -
2
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3
Photographic and comprehensive guide to : Gran Teton National Park /
Published 1971Subjects: “…PARQUES Y RESERVAS NACIONALES…”
Book -
4
Handbook to the Arthur's Pass National Park /
Published 1978Subjects: “…PARQUES Y RESERVAS NACIONALES…”
Book -
5
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6
Panning national parks for ecodevelopment : methods and cases from Latin America /
Published 1978Subjects:Book -
7
Proccedings of the National Environmental Research Park Symposium /
Published 1975Subjects: “…PARQUES Y RESERVAS NACIONALES…”
Conference Proceeding Book -
8
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9
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10
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11
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12
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13
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14
Palau and Seventy Islands Tropical Park /
Published 1972Subjects: “…PARQUES Y RESERVAS NACIONALES…”
Book -
15
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16
Regional Meeting on the Creation of Cordinated System of National Parks and Reserves in Eastern Africa : Proceedings /
Published 1976Subjects:Conference Proceeding Book -
17
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18
World's greatest natural areas : an indicative inventory of natural sites of world heritage quality /
Published 1982Subjects:Book -
19
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20