Cita APA (7th ed.)

Perlmutter, M., & Hall, E. (1992). Adult development and aging (2nd.ed.). John Wiley & Sons.

Cita Chicago (17th ed.)

Perlmutter, Marion, i Elizabeth Hall. Adult Development and Aging. 2nd.ed. New York: John Wiley & Sons, 1992.

Cita MLA (9th ed.)

Perlmutter, Marion, i Elizabeth Hall. Adult Development and Aging. 2nd.ed. John Wiley & Sons, 1992.