Cita APA (7a ed.)

Egan, G. (1990). Exercises in helping skills: A training manual to accompany the skilled helper (4th ed.). Brooks/Cole.

Cita Chicago Style (17a ed.)

Egan, Gerard. Exercises in Helping Skills: A Training Manual to Accompany the Skilled Helper. 4th ed. Monterey: Brooks/Cole, 1990.

Cita MLA (9a ed.)

Egan, Gerard. Exercises in Helping Skills: A Training Manual to Accompany the Skilled Helper. 4th ed. Brooks/Cole, 1990.