APA (7th ed.) Citation

Hafen, B. Q., Peterson, B., & Frandsen, K. J. (1982). The crisis intervention handbook. Prentice-Hall.

Chicago Style (17th ed.) Citation

Hafen, Brent Q., Brenda Peterson, and Kathryn J. Frandsen. The Crisis Intervention Handbook. Englewood Cliffs, N.J.: Prentice-Hall, 1982.

MLA (9th ed.) Citation

Hafen, Brent Q., et al. The Crisis Intervention Handbook. Prentice-Hall, 1982.