Cita APA (7th ed.)
Keim, D. B. R. (2000). Sheridan's troopers on the borders. Digital Scanning.
Cita Chicago (17th ed.)
Keim, De B. Randolph. Sheridan's Troopers on the Borders. Scituate, Mass.: Digital Scanning, 2000.
Cita MLA (9th ed.)
Keim, De B. Randolph. Sheridan's Troopers on the Borders. Digital Scanning, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.