Barry, A. L., Thornsberry, C., Badal, R. E., Baker, C. N., Jones, R. N., & Gerlach, E. H. (1979). Piperacillin susceptibility tests by the single-disk agar diffusion technique.

Barry, A L., C. Thornsberry, R E. Badal, C N. Baker, R N. Jones, und E H. Gerlach. Piperacillin Susceptibility Tests By the Single-disk Agar Diffusion Technique. 1979.

Barry, A L., et al. Piperacillin Susceptibility Tests By the Single-disk Agar Diffusion Technique. 1979.