Coöperation and competition
Subtitle: an experimental study in motivation
By: by Julius Bernard Maller ...
Series: Teachers college, Columbia university.  Contributions to education -- no. 384
Publisher: Teachers college, Columbia university
Published: 1929
Place of publication: New York City
Language: eng
Number of pages: 176
Subjects: Psychology, Educational; Child study; Character tests
Notes: Published also as thesis (Ph.D.) Columbia university.

Bibliography: p. 165-172.