Robert M. Yerkes

Comparative Physiology of the Brain and Comparative Psychology

Robert M. Yerkes, 1902 .

Data obtained through more extensive camp trial of examination beta and resulting modifications.

Robert M. Yerkes, 1921 .

The Great Apes: A Study of Anthropoid Life

Robert M. Yerkes, Ada W. Yerkes, 1933 .

Variability of reaction-time.

Robert M. Yerkes, 1904 .

Psychological examining in the United States army.

Robert M. Yerkes, R. Yerkes, 1921 .

Studies of chimpanzee vision by Ladygin-Kohts.

Robert M. Yerkes, R. Yerkes, Alexander Petrunkevitch, 1925 .

Chimpanzees: A Laboratory Colony

Robert M. Yerkes, R. Yerkes, N. Munn, 1945 .