Cita APA (7a ed.)

Potts, M., & Head, J. J. (1987). Birth control. Carolina Biological Supply, Scientific Publications Department.

Cita Chicago Style (17a ed.)

Potts, Malcolm, y J. J. Head. Birth Control. Burlington, N.C.: Carolina Biological Supply, Scientific Publications Department, 1987.

Cita MLA (8a ed.)

Potts, Malcolm, y J. J. Head. Birth Control. Carolina Biological Supply, Scientific Publications Department, 1987.