Cita APA (7a ed.)

Grant, C., Gray, A., Paoletti, R., Thornton, H., von Kleist, S., Beral, V., . . . Robertson, C. (1999). Hormone replacement therapy.

Cita Chicago Style (17a ed.)

Grant, C., et al. Hormone Replacement Therapy. 1999.

Cita MLA (9a ed.)

Grant, C., et al. Hormone Replacement Therapy. 1999.