Cita APA (7a ed.)

Agruso, V. M. (1978). Learning in the later years: Principles of educational gerontology. Academic Press.

Cita Chicago Style (17a ed.)

Agruso, Victor M. Learning in the Later Years: Principles of Educational Gerontology. New York [etc.]: Academic Press, 1978.

Cita MLA (9a ed.)

Agruso, Victor M. Learning in the Later Years: Principles of Educational Gerontology. Academic Press, 1978.