TY  - BOOK
AU  - Simpson,George Gaylord
TI  - The major features of evolution
T2  - Columbia biological series
AV  - QH366 .S57
U1  - 575.01 
PY  - 1953///
CY  - New York
PB  - Columbia University Press
KW  - Evolution Biology
KW  - Local
N1  - Based on the author's Tempo and mode of evolution; Bibliography: p. [395]-413
ER  -