Cita APA (7th ed.)

Hillier, S., & Barrow, G. M. (1999). Aging, the individual, and society (7th edition.). Wadsworth Publishing Company.

Cita Chicago (17th ed.)

Hillier, Susan, i Georgia M. Barrow. Aging, the Individual, and Society. 7th edition. Belmont, California: Wadsworth Publishing Company, 1999.

Cita MLA (9th ed.)

Hillier, Susan, i Georgia M. Barrow. Aging, the Individual, and Society. 7th edition. Wadsworth Publishing Company, 1999.