APA (7th ed.) Zitazioa
Collins, R. F. (2008). World War I: Primary documents on events from 1914 to 1919. Greenwood Press.
Chicago Style (17th ed.) Zitazioa
Collins, Ross F. World War I: Primary Documents on Events from 1914 to 1919. Westport, Conn.: Greenwood Press, 2008.
MLA (9th ed.) Zitazioa
Collins, Ross F. World War I: Primary Documents on Events from 1914 to 1919. Greenwood Press, 2008.
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