Não informado. (1953). Nebraska Symposium on Motivation. University of Nebraska, Department of Psychology.
Style de citation Chicago (17e éd.)Não informado. Nebraska Symposium on Motivation. Lincoln, Neb: University of Nebraska, Department of Psychology, 1953.
Style de citation MLA (8e éd.)Não informado. Nebraska Symposium on Motivation. University of Nebraska, Department of Psychology, 1953.
Attention : ces citations peuvent ne pas être correctes à 100%.