Παραπομπή σε μορφή APA (7η εκδ.)

Messer, D. (1993). Mastery motivation in early childhood: Development, measurement, and social processes. Routledge.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Messer, David. Mastery Motivation in Early Childhood: Development, Measurement, and Social Processes. London: Routledge, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Messer, David. Mastery Motivation in Early Childhood: Development, Measurement, and Social Processes. Routledge, 1993.