TY  - BOOK
AU  - Norton,Bryan G.
ED  - University of Maryland, College Park. 
TI  - The Preservation of species : : the value of biological diversity / 
SN  - 0691083894
U1  - 333.95   22
PY  - 1986///
CY  - Princeton, N.J. : 
PB  - Princeton University Press, 
KW  - Wildlife conservation
KW  - Biodiversity conservation
KW  - Species diversity
KW  - Extinction (Biology)
N1  -  "Written under the auspices of the Center for Philosophy and Public Policy, University of Maryland"--Opp. t.p;  Includes bibliographical references and index
ER  -