APA-viite (7. p.)
ebrary, Inc, & Whittaker, W. E. (2009). Frontier forts of Iowa: Indians, traders, and soldiers, 1682-1862. University of Iowa Press.
Chicago-viite (17. p.)
ebrary, Inc, ja William E. Whittaker. Frontier Forts of Iowa: Indians, Traders, and Soldiers, 1682-1862. Iowa City: University of Iowa Press, 2009.
MLA-viite (9. p.)
ebrary, Inc, ja William E. Whittaker. Frontier Forts of Iowa: Indians, Traders, and Soldiers, 1682-1862. University of Iowa Press, 2009.
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