APA-referens (7:e uppl.)

O’Brien, D., Harvey, K., & Creswell, C. (2019). Barriers to and facilitators of the identification, management and referral of childhood anxiety disorders in primary care: A survey of general practitioners in England. BMJ.

Chicago-referens (17:e uppl.)

O’Brien, D., K. Harvey, och C. Creswell. Barriers to and Facilitators of the Identification, Management and Referral of Childhood Anxiety Disorders in Primary Care: A Survey of General Practitioners in England. BMJ, 2019.

MLA-referens (9:e uppl.)

O’Brien, D., et al. Barriers to and Facilitators of the Identification, Management and Referral of Childhood Anxiety Disorders in Primary Care: A Survey of General Practitioners in England. BMJ, 2019.