Citazione Stile APA (7a Edizione)
Egan, G. (1975). Exercises in Helping Skills: A Training Manual to Accompany The Skilled Helper. Brooks/Cole.
Citazione stile Chigago Style (17a edizione)
Egan, Gerard. Exercises in Helping Skills: A Training Manual to Accompany The Skilled Helper. Monterey, EUA: Brooks/Cole, 1975.
Citatione MLA (9a ed.)
Egan, Gerard. Exercises in Helping Skills: A Training Manual to Accompany The Skilled Helper. Brooks/Cole, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.