APA (7th ed.) Citation

Erikson, E., Erikson, J. M., & Kivnick, H. Q. (1986). Vital involvement in old age. Norton.

Chicago Style (17th ed.) Citation

Erikson, Eric, Joan M. Erikson, and Helen Q. Kivnick. Vital Involvement in Old Age. New York: Norton, 1986.

MLA (9th ed.) Citation

Erikson, Eric, et al. Vital Involvement in Old Age. Norton, 1986.