APA (7th ed.) Citation

Armstrong, E. a., Armstrong, E. a., & (curator), I. S. U. S. C. a. U. A. (1988). Field notes contributed by Eugene Armstrong and Eloise Armstrong, summer 1988.

Chicago Style (17th ed.) Citation

Armstrong, Eloiseet al, Eugeneet al Armstrong, and Iowa State University. Special Collections and University Archives (curator). Field Notes Contributed by Eugene Armstrong and Eloise Armstrong, Summer 1988. 1988.

MLA (9th ed.) Citation

Armstrong, Eloiseet al, et al. Field Notes Contributed by Eugene Armstrong and Eloise Armstrong, Summer 1988. 1988.