TY  - BOOK
AU  - Yerkes Robert M
AU  - Yerkes Ada W
TI  - Great apes: a study of anthropoid life
U1  - 599.88 
PY  - 1929///
CY  - New Haven
PB  - Yale University Press
KW  - Apes
KW  - Psychology comparative
N1  - Reprinted by Johnson Reprint Corporation, New York, 1970
ER  -