Cita APA

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

Citación estilo Chicago

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

Cita MLA

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