TY  - GEN
AU  - Waters, Rolland H.
AU  - Rethlingshafer, D. A.
AU  - Caldwell, Willard E.
TI  - Principles of comparative psychology
U1  - 151.3 
PY  - 1960///
CY  - New York
PB  - McGraw-Hill Book Company, Inc.
KW  - Psychology
KW  -  Comparative
ER  -