TY  - BOOK
AU  - Simpson,George Gaylord
TI  - Life: an introduction to biology
AV  - QH308 .S53
U1  - 574 
PY  - 1957///
CY  - New York
PB  - Harcourt, Brace & World
KW  - Biology
KW  - Local
N1  - Includes bibliographies
ER  -