Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.