http://es.wikipedia.org/wiki/George_Wheeler_(explorer)

Tooley's Dictionary of Mapmakers, 2004---T. IV, pág. 377(Wheeler, George Montague (1842-1905)

WWW LC cat. (author.), 13/01/2009---(Wheeler, George Montague,1842-1905)

Topographical Atlas, 1875---(Ist. Lieut. Geo. M. Wheeler, Corps of Engineers, N.S. Army in charge; by order of the honorable WM.W. Belknap, Secretary of War; under the direction of Brig. Gen A.A. Humphreys, chief of engineers U.S. Army)