Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.