Association of Iron and Steel Engineers; Association of Iron and Steel Electrical Engineers (U.S.) (1966). Iron and Steel Engineer. Vol. 43. Association of Iron and Steel Engineers. ISSN0021-1559. Retrieved 2015-01-04.
Association of Iron and Steel Engineers; Association of Iron and Steel Electrical Engineers (U.S.) (1966). Iron and Steel Engineer. Vol. 43. Association of Iron and Steel Engineers. ISSN0021-1559. Retrieved 2015-01-04.