APA-referens (7:e uppl.)

Bosetti, C., Negri, E., Franceschi, S., Trichopoulos, D., Beral, V., & La Vecchia, C. (2001). Relationship between postmenopausal hormone replacement therapy and ovarian cancer.

Chicago-referens (17:e uppl.)

Bosetti, C., E. Negri, S. Franceschi, D. Trichopoulos, V. Beral, och C. La Vecchia. Relationship Between Postmenopausal Hormone Replacement Therapy and Ovarian Cancer. 2001.

MLA-referens (9:e uppl.)

Bosetti, C., et al. Relationship Between Postmenopausal Hormone Replacement Therapy and Ovarian Cancer. 2001.