Richter, H. P. Practical electrical wiring; residential, farm, and industrial.Based on the 1951 National electrical code./ by H. P.Richter - 4th ed. - New York, : McGraw-Hill, , 1952. - 602 p. illus. Subjects--Topical Terms: Electric wiring, Interior. Dewey Class. No.: 621.328 KIL/P