TY  - BOOK
AU  - Solbrig,Otto Thomas
TI  - Evolution and systematics
T2  - Current concepts in biology series
U1  - 576.8 SOL/E 
PY  - 1966///
CY  - .- New York
PB  - : Macmillan
KW  - Evolution (Biology)
N1  - Includes bibliographies
ER  -