APA (7th ed.) Citation

Beard, R. M. (1980). An outline of Piaget's developmental psychology for students and teachers (Repr.). Routledge & Kegan Paul.

Chicago Style (17th ed.) Citation

Beard, Ruth M. An Outline of Piaget's Developmental Psychology for Students and Teachers. Repr. London u.a: Routledge & Kegan Paul, 1980.

MLA (9th ed.) Citation

Beard, Ruth M. An Outline of Piaget's Developmental Psychology for Students and Teachers. Repr. Routledge & Kegan Paul, 1980.