APA引文

Shoop, D. S., Myers, L. L., & LeFever, J. B. (1990). Enumeration of enterotoxigenic Bacteroides fragilis in municipal sewage.

Citação norma Chicago

Shoop, D S., L L. Myers, and J B. LeFever. Enumeration of Enterotoxigenic Bacteroides Fragilis in Municipal Sewage. 1990.

MLA引文

Shoop, D S., L L. Myers, and J B. LeFever. Enumeration of Enterotoxigenic Bacteroides Fragilis in Municipal Sewage. 1990.

警告：這些引文格式不一定是100％准確.