APA (7th ed.) Citation

Sigma Xi, the Scientific Research Society, Society of the Sigma Xi, Scientific Research Society of America, & Sigma Xi, the Scientific Research Society of North America. (1974). American scientist. Sigma Xi, etc.].

Chicago Style (17th ed.) Citation

Sigma Xi, the Scientific Research Society, Society of the Sigma Xi, Scientific Research Society of America, and the Scientific Research Society of North America Sigma Xi. American Scientist. [New Haven, Conn., etc.: Sigma Xi, etc.], 1974.

MLA (9th ed.) Citation

Sigma Xi, the Scientific Research Society, et al. American Scientist. Sigma Xi, etc.], 1974.