Citazione APA

Fiona Ballantine Dykes, Barry Kopp, & Traci Postings. (2017). Counselling skills and studies (2nd edition.). Sage Publishers.

Stile di citazione Chicago

Fiona Ballantine Dykes, Barry Kopp, e Traci Postings. Counselling Skills and Studies. 2nd edition. London: Sage Publishers, 2017.

Citazione MLA

Fiona Ballantine Dykes, et al. Counselling Skills and Studies. 2nd edition. Sage Publishers, 2017.