Cita APA

D B Crighton, G R Foxcroft, & N B Haymer. (1978). Control of ovulation. Butterworths.

Citación estilo Chicago

D B Crighton, G R Foxcroft, y N B Haymer. Control of Ovulation. Butterworths, 1978.

Cita MLA

D B Crighton, et al. Control of Ovulation. Butterworths, 1978.