Cita APA (7th ed.)

Egan, G. (1975). The skilled helper: A model for systematic helping and interpersonal relating. Brooks / Cole.

Cita Chicago (17th ed.)

Egan, Gerard. The Skilled Helper: A Model for Systematic Helping and Interpersonal Relating. California: Brooks / Cole, 1975.

Cita MLA (9th ed.)

Egan, Gerard. The Skilled Helper: A Model for Systematic Helping and Interpersonal Relating. Brooks / Cole, 1975.