APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, & Bergman, M. (2008). Iowa history reader (University of Iowa Press ed.). University of Iowa Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, ба Marvin Bergman. Iowa History Reader. University of Iowa Press ed. Iowa City: University of Iowa Press, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, ба Marvin Bergman. Iowa History Reader. University of Iowa Press ed. University of Iowa Press, 2008.