Cita APA

Brown, L. D., Zygmunt, W. A., & Stavely, H. E. (1969). Some Active Derivatives of Penicillin.

Chicago Style Citation

Brown, Loman D., Walter A. Zygmunt, i Homer E. Stavely. Some Active Derivatives of Penicillin. 1969.

Cita MLA

Brown, Loman D., Walter A. Zygmunt, i Homer E. Stavely. Some Active Derivatives of Penicillin. 1969.