APA (7th ed.) Zitazioa

ebrary, Inc, Mangen, D. J., & Peterson, W. A. (1984). Research instruments in social gerontology. University of Minnesota Press.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, David J. Mangen, eta Warren A. Peterson. Research Instruments in Social Gerontology. Minneapolis, MN: University of Minnesota Press, 1984.

MLA (9th ed.) Zitazioa

ebrary, Inc, et al. Research Instruments in Social Gerontology. University of Minnesota Press, 1984.