Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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