Clack, G. S. (1974). Effects of social class, age, and sex on tests of perception, affect discrimination, and deferred gratification in children. Univ. Microfilms.
Chicago-Zitierstil (17. Ausg.)Clack, Gerald Sterling. Effects of Social Class, Age, and Sex on Tests of Perception, Affect Discrimination, and Deferred Gratification in Children. Ann Arbor, Mich: Univ. Microfilms, 1974.
MLA-Zitierstil (9. Ausg.)Clack, Gerald Sterling. Effects of Social Class, Age, and Sex on Tests of Perception, Affect Discrimination, and Deferred Gratification in Children. Univ. Microfilms, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.