Horack, F. E. (1915). The government of Iowa. Scribner's Sons.
Lua i Stíl Chicago (17ú heag.)Horack, Frank E. The Government of Iowa. New York, Chicago [etc.]: Scribner's Sons, 1915.
Lua MLA (8ú heag.)Horack, Frank E. The Government of Iowa. Scribner's Sons, 1915.
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