TY  - BOOK
AU  - Bertalanffy,Ludwig Von
AU  - Woodger,J.H.
TI  - Modern theories of development
U1  - 574 BER  
PY  - 1962///.
CY  - New York  : 
PB  - Harper Torchbooks, 
KW  - biology
N1  - Includes index
ER  -