APA (7th ed.) Citation

Powell, D. H. (1994). Profiles in cognitive aging. Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Powell, Douglas H. Profiles in Cognitive Aging. Cambridge, Mass. [u.a.]: Harvard Univ. Press, 1994.

MLA (9th ed.) Citation

Powell, Douglas H. Profiles in Cognitive Aging. Harvard Univ. Press, 1994.