APA (7th ed.) Citation

Armstrong, E. a., Armstrong, E. a., (curator), I. S. U. S. C. a. U. A., & Thompson, D. (1984). Field notes contributed by Eugene and Eloise Armstrong, November 28, 1984.

Chicago Style (17th ed.) Citation

Armstrong, Eloiseet al, Eugeneet al Armstrong, Iowa State University. Special Collections and University Archives (curator), and Dennis Thompson. Field Notes Contributed by Eugene and Eloise Armstrong, November 28, 1984. 1984.

MLA (9th ed.) Citation

Armstrong, Eloiseet al, et al. Field Notes Contributed by Eugene and Eloise Armstrong, November 28, 1984. 1984.