Dyfyniad APA

Sandburg, C. (1926). Abraham Lincoln: The prairie years. Harcourt, Brace & company.

Dyfyniad Arddull Chicago

Sandburg, Carl. Abraham Lincoln: The Prairie Years. New York: Harcourt, Brace & company, 1926.

Dyfyniad MLA

Sandburg, Carl. Abraham Lincoln: The Prairie Years. Harcourt, Brace & company, 1926.

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