APA (7th ed.) Citation

Silcock, W. R. a., (curator), I. S. U. S. C. a. U. A., & Halmi, N. S. (1978). Ross W. Silcock letter to Nicholas S. Halmi regarding bird sightings, February 12, 1978.

Chicago Style (17th ed.) Citation

Silcock, W. Rosset al, Iowa State University. Special Collections and University Archives (curator), and Nicholas S. Halmi. Ross W. Silcock Letter to Nicholas S. Halmi Regarding Bird Sightings, February 12, 1978. 1978.

MLA (9th ed.) Citation

Silcock, W. Rosset al, et al. Ross W. Silcock Letter to Nicholas S. Halmi Regarding Bird Sightings, February 12, 1978. 1978.