TY  - BOOK
AU  - Gerking,Shelby Delos
TI  - Biological systems
SN  - 0721641066
AV  - QH308.2 .G46 1974
U1  - 574 
PY  - 1974///
CY  - Philadelphia
PB  - Saunders
KW  - Biological systems
N1  - Includes bibliographies
ER  -