TY  - BOOK
AU  - Black,John David,1908-
TI  - Biological conservation: with particular emphasis on wildlife 
PY  - 1954///
CY  - New York
PB  - McGraw-Hill
KW  - Wildlife conservation
KW  - United States
KW  - Zoology
KW  - Zoology, Economic
N1  - Includes bibliographical references and index
ER  -