Under the UIC classification the wheel arrangement is referred to as (1'C)C1' for Mallet locomotives.
^Mellin, C. J. (1908). Articulated Compound Locomotives. New York, N. Y.: American Locomotive Company. pp. 20–21.
^Drury, George H. (2015). Guide to North American Steam Locomotives, revised edition. Waukesha, Wisconsin: Kalmbach Books. p. 181. ISBN978-1-62700-259-2.
^LeMassena, Robert A (1991). Articulated Steam Locomotives of North America, vol. 2. Denver, Col.: Sundance Publications, Ltd. p. 35. ISBN0-913582-54-9.