Gilbert, D. N., Mollering, R. C., Jr, Sande, M. A., & Sandford, J. P. (2001). The Sanford guide to antimicrobial therapy (31st ed.). Antimocrobial Therapy Inc.

Gilbert, David N., Robert C. Mollering, Jr, Merle A. Sande, and Jay P. Sandford. The Sanford Guide to Antimicrobial Therapy. 31st ed. Hyde Park, VT: Antimocrobial Therapy Inc, 2001.

Gilbert, David N., et al. The Sanford Guide to Antimicrobial Therapy. 31st ed. Antimocrobial Therapy Inc, 2001.