APA (7th ed.) Zitazioa

Schwartz, A. N., & Peterson , J. A. (1979). Introduction to gerontology. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Zitazioa

Schwartz, Arthur N., eta James A. Peterson. Introduction to Gerontology. New York: Holt, Rinehart and Winston, 1979.

MLA (9th ed.) Zitazioa

Schwartz, Arthur N., eta James A. Peterson. Introduction to Gerontology. Holt, Rinehart and Winston, 1979.