Conrad, J. M., & Clark, C. W. (1987). Natural resource economics: Notes and problems. Cambridge University Press.
Chicago Style (17th ed.) CitationConrad, Jon M., and Colin Whitcomb Clark. Natural Resource Economics: Notes and Problems. New York, N.Y.: Cambridge University Press, 1987.
MLA (9th ed.) CitationConrad, Jon M., and Colin Whitcomb Clark. Natural Resource Economics: Notes and Problems. Cambridge University Press, 1987.