Cita APA (7a ed.)

Potts, M., & Wood, C. (1972). New concepts in contraception. University Park Press.

Cita Chicago Style (17a ed.)

Potts, Malcolm, y Clive Wood. New Concepts in Contraception. Baltimore: University Park Press, 1972.

Cita MLA (9a ed.)

Potts, Malcolm, y Clive Wood. New Concepts in Contraception. University Park Press, 1972.