APA (7th ed.) Citation

Black, G. a., (curator), I. S. U. S. C. a. U. A., & Kleen, V. M. (1977). Gladys Black letter to Vernon M. Kleen regarding bird sightings, January 10, 1977.

Chicago Style (17th ed.) Citation

Black, Gladyset al, Iowa State University. Special Collections and University Archives (curator), and Vernon M. Kleen. Gladys Black Letter to Vernon M. Kleen Regarding Bird Sightings, January 10, 1977. 1977.

MLA (9th ed.) Citation

Black, Gladyset al, et al. Gladys Black Letter to Vernon M. Kleen Regarding Bird Sightings, January 10, 1977. 1977.