APA aipamena

Midlarsky, E., & Kahana, E. (1994). Altruism in later life. Sage Publications.

Chicago Style aipamena

Midlarsky, Elizabeth, and Eva Kahana. Altruism in Later Life. Thousand Oaks: Sage Publications, 1994.

MLA aipamena

Midlarsky, Elizabeth, and Eva Kahana. Altruism in Later Life. Sage Publications, 1994.