Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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