D. Isaac

SONG VARIATION IN A POPULATION OF BROWN TOWHEES

P. Marler, D. Isaac, 1960 .

Physical Analysis of a Simple Bird Song as Exemplified by the Chipping Sparrow

Peter Marler, P. Marler, Donald Isaac, 1960 .

The Reproduction of Heteromyid Rodents in Captivity

J. Eisenberg, D. Isaac, 1963 .

Ordering of sequences of singing behaviour of mistle thrushes in relationship to timing

Peter Marler, P. Marler, Donald Isaac, 1963 .