APA (7th ed.) Citation

Grondahl, C., & Schumacher, J. (1997). The owls of North Dakota (Version 16JUL97.). U.S. Geological Survey, Northern Prairie Wildlife Research Center.

Chicago Style (17th ed.) Citation

Grondahl, Chris, and Jonn Schumacher. The Owls of North Dakota. Version 16JUL97. Jamestown, N.D.: U.S. Geological Survey, Northern Prairie Wildlife Research Center, 1997.

MLA (9th ed.) Citation

Grondahl, Chris, and Jonn Schumacher. The Owls of North Dakota. Version 16JUL97. U.S. Geological Survey, Northern Prairie Wildlife Research Center, 1997.