Παραπομπή APA

O' Brien, M., & Houston, G. (2007). Integrative therapy: A practitioner's guide (2nd. ed.). Sage Publications.

Παραπομπή Chicago Style

O' Brien, Maja, και Gaie Houston. Integrative Therapy: A Practitioner's Guide. 2nd. ed. London: Sage Publications, 2007.

Παραπομπή MLA

O' Brien, Maja, και Gaie Houston. Integrative Therapy: A Practitioner's Guide. 2nd. ed. Sage Publications, 2007.