Pethebridge, Keith. creator Neeson, Ian. text S.l.] McGraw-Hill Education 2001 6th ed. monographic 1 v. (unpaged) ; Electric wiring Electric wiring--Standards 0074710524 (paperback) 9780074710524 (paperback) http://www.amazon.com/exec/obidos/ASIN/0074710524/chopaconline-20 http://www.amazon.com/exec/obidos/ASIN/0074710524/chopaconline-20