TY  - BOOK
T1  - Life of the past :an introduction to paleontology.
DA  - c1953.
CY  - New Haven :
AU  - Simpson, George Gaylord,
CN  - QE711 .S5
CN  - QE711
PB  - Yale University Press,
PP  - New Haven :
PY  - c1953.
ID  - 58918
KW  - Paleontology.
TI  - Life of the past :an introduction to paleontology.
ER  -