Levin, S., Benson, C. A., & Goodman, L. J. (1987). The Clinician`s Guide to Sexually Transmitted Diseases. Year Book Medical Publishers.
Cita Chicago (17th ed.)Levin, Stuart, Constance A. Benson, i Larry J. Goodman. The Clinician`s Guide to Sexually Transmitted Diseases. London: Year Book Medical Publishers, 1987.
Cita MLA (9th ed.)Levin, Stuart, et al. The Clinician`s Guide to Sexually Transmitted Diseases. Year Book Medical Publishers, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.