The companion in the environment of the bird : the fellow member of the species as the motivating factor in social behavior : dedicated to Jakob von Uexküll on the occasion of his 70th birthday
The companion in the environment of the bird : the fellow member of the species as the motivating factor in social behavior : dedicated to Jakob von Uexküll on the occasion of his 70th birthday.
Published
[s.l. : s.n., 197-?]
Physical Description
113 [i.e. 223] leaves ; 29 cm.
Notes
Originally published in the Journal für Ornithologie, 1935.