Bromwich, P. (1990). Contraception: The facts (2nd ed.). Oxford University Press.
Chicago Style aipamenaBromwich, Peter. Contraception: The Facts. 2nd ed. Oxford [England] New York: Oxford University Press, 1990.
MLA aipamenaBromwich, Peter. Contraception: The Facts. 2nd ed. Oxford University Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.