Cita APA (7th ed.)

Beral, V., Bull, D., Green, J., Reeves, G., & Collabor, M. (2007). Ovarian cancer and hormone replacement therapy - Reply.

Cita Chicago (17th ed.)

Beral, V., D. Bull, J. Green, G. Reeves, i M. Collabor. Ovarian Cancer and Hormone Replacement Therapy - Reply. 2007.

Cita MLA (9th ed.)

Beral, V., et al. Ovarian Cancer and Hormone Replacement Therapy - Reply. 2007.