TY  - BOOK
AU  - Yerkes, Robert M.
AU  - Yerkes, Ada W.
TI  - The great apes: a study of anthropoid life
U1  - 569.8 
PY  - 1929///
CY  - London
PB  - New Haven
KW  - Psychology, comparative
KW  - Apes-behavior
ER  -