TY  - BOOK
AU  - Waters,Rolland H (ed)
AU  - Caldwell, Willard E (ed)
AU  - Rethlingshafer, D A (ed)
TI  - Principles of comparative psychology
U1  - 156 
PY  - 1960///
CY  - New York
PB  - McGraw-Hill
KW  - Comparative psychology
ER  -