Cita APA

Beard, R. M. (2006). An outline of Piaget's development psychology. Routledge.

Citación estilo Chicago

Beard, Ruth M. An Outline of Piaget's Development Psychology. London: Routledge, 2006.

Cita MLA

Beard, Ruth M. An Outline of Piaget's Development Psychology. Routledge, 2006.

Warning: These citations may not always be 100% accurate.