APA (7th ed.) Zitazioa
Drake, S. A. (2001). The battle of Gettysburg, 1863. Digital Scanning.
Chicago Style (17th ed.) Zitazioa
Drake, Samuel Adams. The Battle of Gettysburg, 1863. Scituate, Mass.: Digital Scanning, 2001.
MLA (9th ed.) Zitazioa
Drake, Samuel Adams. The Battle of Gettysburg, 1863. Digital Scanning, 2001.
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