APA (7th ed.) Citation

Porterfield, J. D., & St. Pierre, R. (1992). Healthful aging. The Dushkin Publishing Group.

Chicago Style (17th ed.) Citation

Porterfield, James D., and Richard St. Pierre. Healthful Aging. Guilford: The Dushkin Publishing Group, 1992.

MLA (9th ed.) Citation

Porterfield, James D., and Richard St. Pierre. Healthful Aging. The Dushkin Publishing Group, 1992.