Стиль цитування APA (7-ме видання)

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

Чикаго стиль цитування (17-те видання)

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

Стиль цитування MLA (9-ме видання)

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