Παραπομπή σε μορφή APA (7η εκδ.)

Maier, H. W. (1965). Three theories of child development: The contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and their applications. Harper & Row.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Maier, Henry W. Three Theories of Child Development: The Contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and Their Applications. New York: Harper & Row, 1965.

Παραπομπή σε μορφή MLA (8th εκδ.)

Maier, Henry W. Three Theories of Child Development: The Contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and Their Applications. Harper & Row, 1965.