TY  - BOOK
AU  - Ross,Herbert Holdsworth
TI  - Understanding evolution
T2  - A Spectrum book, S-ST-4
AV  - QH366 .R779
U1  - 575 
PY  - 1966///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Evolution Biology
KW  - Local
N1  - Bibliography: p. 167
ER  -