APA (7th ed.) Citation

Pratt, H. D., (curator), I. S. U. S. C. a. U. A., Halmi, N. S., & Wee, G. (1978). Douglas H. Pratt letter to Nicholas S. Halmi regarding bird sightings, November 21, 1978.

Chicago Style (17th ed.) Citation

Pratt, H. Douglas, Iowa State University. Special Collections and University Archives (curator), Nicholas S. Halmi, and Gary Wee. Douglas H. Pratt Letter to Nicholas S. Halmi Regarding Bird Sightings, November 21, 1978. 1978.

MLA (9th ed.) Citation

Pratt, H. Douglas, et al. Douglas H. Pratt Letter to Nicholas S. Halmi Regarding Bird Sightings, November 21, 1978. 1978.