Mathematical bioeconomics the mathematics of conservation অনুযায়ী Clark, Colin Whitcomb 1931-

Ecological applications a publication of the Ecological Society of America.

Economics and biological diversity developing and using economic incentives to conserve biological resources অনুযায়ী McNeely, Jeffrey A.

The economics of biological diversity apologetics or theory? অনুযায়ী Norgaard, Richard B.

Mathematical bioeconomics the optimal management of renewable resources অনুযায়ী Clark, Colin Whitcomb 1931-

The biology of agricultural systems অনুযায়ী Spedding, C. R. W.

The biology of agricultural systems অনুযায়ী Spedding, C.R. W.

Biology and the manufacturing industries proceedings of a symposium held at the Royal Geographical Society, London, on 29 and 30 September 1966

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Man in nature অনুযায়ী Bates, Marston

Man in nature অনুযায়ী Bates, Marston, 1906-1974