APA (7th ed.) Zitazioa
Schwieder, D. (1996). Iowa: The middle land. University of Iowa Press.
Chicago Style (17th ed.) Zitazioa
Schwieder, Dorothy. Iowa: The Middle Land. Iowa City: University of Iowa Press, 1996.
MLA (9th ed.) Zitazioa
Schwieder, Dorothy. Iowa: The Middle Land. University of Iowa Press, 1996.
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