Battle, E. S. (1967). Achievement values, standards and expectations: Their effect on children's task persistence and academic competence. University Microfilms.
Chicago-Zitierstil (17. Ausg.)Battle, Esther Steinhauer. Achievement Values, Standards and Expectations: Their Effect on Children's Task Persistence and Academic Competence. [Ann Arbor, Mich: University Microfilms, 1967.
MLA-Zitierstil (9. Ausg.)Battle, Esther Steinhauer. Achievement Values, Standards and Expectations: Their Effect on Children's Task Persistence and Academic Competence. University Microfilms, 1967.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.