APA (7th ed.) Citation

Engebretsen, B. a., & (curator), I. S. U. S. C. a. U. A. (1999). Sighting record listing, Iowa, 6/1/1999-7/31/1999, Bery Engebretsen.

Chicago Style (17th ed.) Citation

Engebretsen, Beryet al, and Iowa State University. Special Collections and University Archives (curator). Sighting Record Listing, Iowa, 6/1/1999-7/31/1999, Bery Engebretsen. 1999.

MLA (9th ed.) Citation

Engebretsen, Beryet al, and Iowa State University. Special Collections and University Archives (curator). Sighting Record Listing, Iowa, 6/1/1999-7/31/1999, Bery Engebretsen. 1999.