Sandler, Stanley. Ground warfare: An International Encyclopedia. 1. illustrated. ABC-CLIO, 2002, p. 506,507 (International warfare encyclopedias from ABC-CLIO). ISBN 1576073440.
Rollin, Charles. The ancient history of the Egyptians, Carthaginians, Assyrians, Babylonians, Medes and Persians, Macedonians, and Grecians. 3. 10a edició. Printed for W. J. & J. Richardson, 1804, p. 34.
Martin Marix Evans, Graham Turner. Naseby 1645: The Triumph of the New Model Army,, Osprey Publishing, 2007 ISBN 1846030781, 9781846030789. p. 76[Enllaç no actiu]
Gunderson, Cory Gideon. The battle of the Alamo. ABDO, 2004, p. 15. ISBN 1591972787.
