APA citiranje

Pyke, T. R., & Dietz, A. (1966). U-21,963, a New Antibiotic: I. Discovery and Biological Activity.

Citação norma Chicago

Pyke, Thomas R., and Alma Dietz. U-21,963, a New Antibiotic: I. Discovery and Biological Activity. 1966.

MLA citiranje

Pyke, Thomas R., and Alma Dietz. U-21,963, a New Antibiotic: I. Discovery and Biological Activity. 1966.