TY  - BOOK
T1  - Tempo and mode in evolution.
DA  - 1965 [c1964]
CY  - New York,
AU  - Simpson, George Gaylord,
CN  - QH366 .S59
CN  - QH366
PB  - Hafner Pub. Co.,
PP  - New York,
PY  - 1965 [c1964]
N1  - "Facsimile of 1944 edition."
ID  - 54956
KW  - Evolution.
TI  - Tempo and mode in evolution.
ER  -