Cita APA (7th ed.)

Koller, M. R. (1968). Social gerontology. Random House.

Cita Chicago (17th ed.)

Koller, Marvin R. Social Gerontology. New York: Random House, 1968.

Cita MLA (9th ed.)

Koller, Marvin R. Social Gerontology. Random House, 1968.