Mathematical bioeconomics the mathematics of conservation 由 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 由 McNeely, Jeffrey A.

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

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

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

The biology of agricultural systems 由 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 由 Bates, Marston

Man in nature 由 Bates, Marston, 1906-1974