Swann, J. S. (1867). Title map of the coal field of the Great Kanawha Valley, West Virginia, United States of America. New York: G.W. & C.B. Colton.

Swann, John S. Title Map of the Coal Field of the Great Kanawha Valley, West Virginia, United States of America. New York: G.W. & C.B. Colton, 1867.

Swann, John S. Title Map of the Coal Field of the Great Kanawha Valley, West Virginia, United States of America. New York: G.W. & C.B. Colton, 1867.