APA (7th ed.) Citation

Porterfield, K. M. (1989). Violent voices: 12 steps to freedom from verbal and emotional abuse.

Chicago Style (17th ed.) Citation

Porterfield, Kay Marie. Violent Voices: 12 Steps to Freedom from Verbal and Emotional Abuse. Deerfield Beach, Fla, 1989.

MLA (8th ed.) Citation

Porterfield, Kay Marie. Violent Voices: 12 Steps to Freedom from Verbal and Emotional Abuse. 1989.