Dyfyniad APA

Tignor, R. (2008). A History of the World. Volume one. McGraw - HillCompanies, Inc.

Dyfyniad Arddull Chicago

Tignor, Robert. A History of the World. Volume One. McGraw - HillCompanies, Inc, 2008.

Dyfyniad MLA

Tignor, Robert. A History of the World. Volume One. McGraw - HillCompanies, Inc, 2008.

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