Newman, B. M., & Newman, P. R. (1979). Development through life: A psychosocial approach (Revised ed.). Dorsey.

Newman, Barbara M., and Philip R. Newman. Development Through Life: A Psychosocial Approach. Revised ed. Illinois: Dorsey, 1979.

Newman, Barbara M., and Philip R. Newman. Development Through Life: A Psychosocial Approach. Revised ed. Dorsey, 1979.