Cita APA (7th ed.)

Warnes, A. M. (1982). Geographical perspectives on the elderly. Wiley.

Cita Chicago (17th ed.)

Warnes, A. M. Geographical Perspectives on the Elderly. Chichester ; New York: Wiley, 1982.

Cita MLA (8th ed.)

Warnes, A. M. Geographical Perspectives on the Elderly. Wiley, 1982.