TY  - BOOK
AU  - Hardin,Garrett James
TI  - Biology: Its principles and implications 
T2  - A series of books in biology
AV  - QH308 H2581966
PY  - 1966///
CY  - San francisco
PB  - W. H. Freeman
KW  - Biología
N1  - Teachers manual, san francisco, w.h. freeman 1966 61 p. 23 cm
ER  -