APA (7th ed.) Citation

Knafl, K. A., & Grace, H. K. (1978). Families across the life cycle: Studies for nursing. Little, Brown.

Chicago Style (17th ed.) Citation

Knafl, Kathleen Astin, and Helen K. Grace. Families Across the Life Cycle: Studies for Nursing. Boston: Little, Brown, 1978.

MLA (9th ed.) Citation

Knafl, Kathleen Astin, and Helen K. Grace. Families Across the Life Cycle: Studies for Nursing. Little, Brown, 1978.