Watkins, A. J. Electrical installation calculations. volume 2 / A. J. Waltkins. - 5th ed. / prepared by Russel K. Parton. - Oxford : Necones, 1999. - vii, 124 p. - v. 2. ISBN: 0340731850 : KES 1,999 Subjects--Topical Terms: Electrical circuits. LC Class. No.: TK454 / .W38 1999