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

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

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

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

The biology of agricultural systems gan 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 gan Bates, Marston

Man in nature gan Bates, Marston, 1906-1974