APA aipamena

Robert M. Liebert, R. W. N. Developmental psychology. Prentice.

Chicago Style aipamena

Robert M. Liebert, Rita Wicks Nelson. Developmental Psychology. Prentice.

MLA aipamena

Robert M. Liebert, Rita Wicks Nelson. Developmental Psychology. Prentice.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.