The play of animals
By: by Karl Groos ... tr. with the author's cooperation by Elizabeth L. Baldwin; with a preface and an appendix by J. Mark Baldwin ...
Contributors: Baldwin, Elizabeth L., tr.; Baldwin, James Mark, 1861-1934, ed.
Publisher: D. Appleton and Company
Published: 1898
Place of publication: New York
Language: eng
Number of pages: 341
Subjects: Play; Animal behavior