Coöperation and competition : an experimental study in motivation / by Julius Bernard Maller.

New York City : Teachers college, Columbia university, 1929.

x, 176 pages ; 23 cm.

Also published as thesis.--Columbia University, 1929

Copy 1 Supplier/Donor: Poly of East London Note: Author's dedication on front endpaper. Formerly in the Charles Myers Library at the N.I.I.P

Bibliography: p. 165-172.