Egan, G. (1975). The skilled helper: A model for systematic helping and interpersonal relating. Brooks / Cole.
芝加哥风格引文Egan, Gerard. The Skilled Helper: A Model for Systematic Helping and Interpersonal Relating. California: Brooks / Cole, 1975.
MLA引文Egan, Gerard. The Skilled Helper: A Model for Systematic Helping and Interpersonal Relating. Brooks / Cole, 1975.
警告：这些引文格式不一定是100％准确.