APA (7th ed.) Citation

Orr, E. a., (curator), I. S. U. S. C. a. U. A., & Allert, O. P. (1934). Ellison Orr letter to Oscar Allert regarding Peregrine Falcon sightings, March 10, 1934.

Chicago Style (17th ed.) Citation

Orr, Ellisonet al, Iowa State University. Special Collections and University Archives (curator), and Oscar P. Allert. Ellison Orr Letter to Oscar Allert Regarding Peregrine Falcon Sightings, March 10, 1934. 1934.

MLA (9th ed.) Citation

Orr, Ellisonet al, et al. Ellison Orr Letter to Oscar Allert Regarding Peregrine Falcon Sightings, March 10, 1934. 1934.