APA-referens (7:e uppl.)

Johnson, N., Hasler, J., Mant, D., Randall, T., Jones, L., & Yudkin, P. (1993). General practice careers: Changing experience of men and women vocational trainees between 1974 and 1989.

Chicago-referens (17:e uppl.)

Johnson, N., J. Hasler, D. Mant, T. Randall, L. Jones, och P. Yudkin. General Practice Careers: Changing Experience of Men and Women Vocational Trainees Between 1974 and 1989. 1993.

MLA-referens (9:e uppl.)

Johnson, N., et al. General Practice Careers: Changing Experience of Men and Women Vocational Trainees Between 1974 and 1989. 1993.