Citazione Stile APA (7a Edizione)
Egan, G. (1982). Exercises in helping skills: A training manual to accompany the skilled helper (2nd ed.). Brooks/Cole.
Citazione stile Chigago Style (17a edizione)
Egan, Gerard. Exercises in Helping Skills: A Training Manual to Accompany the Skilled Helper. 2nd ed. Monterey: Brooks/Cole, 1982.
Citatione MLA (9a ed.)
Egan, Gerard. Exercises in Helping Skills: A Training Manual to Accompany the Skilled Helper. 2nd ed. Brooks/Cole, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.