TY  - BOOK
AU  - Rogers, J. Speed 
AU  - Hubbell, Theodore H. 
TI  - Man and the biological world
U1  - 591 ROG  
PY  - 1952///.
CY  - New York : 
PB  - McGraw-Hill Book Company, Inc., 
KW  - Biology
N1  - Includes index.
ER  -