APA (7th ed.) Citation

Walters, K. A., & Hadgraft, J. (1993). Pharmaceutical skin penetration enhancement. M. Dekker.

Chicago Style (17th ed.) Citation

Walters, Kenneth A., and Jonathan Hadgraft. Pharmaceutical Skin Penetration Enhancement. New York: M. Dekker, 1993.

MLA (9th ed.) Citation

Walters, Kenneth A., and Jonathan Hadgraft. Pharmaceutical Skin Penetration Enhancement. M. Dekker, 1993.