APA (7th ed.) Citation

Drouet, F., Zirkle, R. E., Cunningham, J. W., & Rickett, H. W. (1930). A list of Algae from Columbia, Mo. The University of Missouri.

Chicago Style (17th ed.) Citation

Drouet, Francis, Raymond E. Zirkle, James W. Cunningham, and Harold William Rickett. A List of Algae from Columbia, Mo. Columbia: The University of Missouri, 1930.

MLA (9th ed.) Citation

Drouet, Francis, et al. A List of Algae from Columbia, Mo. The University of Missouri, 1930.