The World's Savannas: Economic Driving Forces, Ecological Constraints, and Policy Options for Sustainable Land Use (Man and the Biosphere Series, Volume 12)
by Young, M. D. and Solbrig, O. T. (editors)
$ 16.00
Report on the Birds of Pennsylvania: With Special Reference to the Food-Habits, Based on Over Three Thousand Stomach Examinations
by Warren, B.H.
$ 100.00
The Owls of North America (North of Mexico): All the Species and Subspecies Illustrated in Color and Fully Described
by Karalus, K.E. and Eckert, A.W.
$ 30.00