Bromwich, P. (1990). Contraception: The facts (2nd ed.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Bromwich, Peter. Contraception: The Facts. 2nd ed. Oxford [England] New York: Oxford University Press, 1990.
Lua MLA (8ú heag.)Bromwich, Peter. Contraception: The Facts. 2nd ed. Oxford University Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.