APA (7th ed.) Citation

Koenig, D. a., (curator), I. S. U. S. C. a. U. A., & Halmi, N. S. (1976). Darwin Koenig letter to Nicholas S. Halmi regarding bird sightings, winter 1976-1977.

Chicago Style (17th ed.) Citation

Koenig, Darwinet al, Iowa State University. Special Collections and University Archives (curator), and Nicholas S. Halmi. Darwin Koenig Letter to Nicholas S. Halmi Regarding Bird Sightings, Winter 1976-1977. 1976.

MLA (9th ed.) Citation

Koenig, Darwinet al, et al. Darwin Koenig Letter to Nicholas S. Halmi Regarding Bird Sightings, Winter 1976-1977. 1976.