Cytowanie według stylu APA (wyd. 7)

Negri, E., Tzonou, A., Beral, V., Lagiou, P., Trichopoulos, D., Parazzini, F., . . . La Vecchia, C. (1999). Hormonal therapy for menopause and ovarian cancer in a collaborative re-analysis of European studies.

Cytowanie według stylu Chicago (wyd. 17)

Negri, E., A. Tzonou, V. Beral, P. Lagiou, D. Trichopoulos, F. Parazzini, S. Franceschi, M. Booth, i C. La Vecchia. Hormonal Therapy for Menopause and Ovarian Cancer in a Collaborative Re-analysis of European Studies. 1999.

Cytowanie według stylu MLA (wyd. 9)

Negri, E., et al. Hormonal Therapy for Menopause and Ovarian Cancer in a Collaborative Re-analysis of European Studies. 1999.