TY  - BOOK
AU  - Ehrlich,Paul R.
AU  - Holm,Richard W.
TI  - The process of evolution
U1  - 575 
PY  - 1963///
CY  - New York
PB  - McGraw-Hill
KW  - Evolution (Biology)
KW  - Genetics
N1  - Includes bibliographical references and index
ER  -