APA (7th ed.) Citation

Simpson, I. H., McKinney, J. C., & Spengler, J. J. (1966). Social aspects of aging. Duke University Press.

Chicago Style (17th ed.) Citation

Simpson, Ida Harper, John C. McKinney, and Joseph J. Spengler. Social Aspects of Aging. Durham, N.C.: Duke University Press, 1966.

MLA (9th ed.) Citation

Simpson, Ida Harper, et al. Social Aspects of Aging. Duke University Press, 1966.