APA引文

Simpson, M. L., Khan, M. Y., Siddiqui, Y., Gruninger, R. P., & Wigren, D. I. (1982). Comparison of piperacillin and penicillin in the treatment of uncomplicated gonorrhea.

Citação norma Chicago

Simpson, M L., M Y. Khan, Y. Siddiqui, R P. Gruninger, and D I. Wigren. Comparison of Piperacillin and Penicillin in the Treatment of Uncomplicated Gonorrhea. 1982.

MLA引文

Simpson, M L., et al. Comparison of Piperacillin and Penicillin in the Treatment of Uncomplicated Gonorrhea. 1982.