APA Citatie

Barbara M. Newman & Philip R. Newman. (2016). Theories of human development (Second edition.). Psychology Press.

Chicago Style citaat

Barbara M. Newman en Philip R. Newman. Theories of Human Development. Second edition. New York: Psychology Press, 2016.

MLA citatie

Barbara M. Newman en Philip R. Newman. Theories of Human Development. Second edition. Psychology Press, 2016.