Watkins, A.J. Electrical installation calculations, Vol. 2 / A.J. Watkins and C. Kitcher. - 6th ed. - Amsterdam : Elsevier, 2006. - viii, 188 p. : ill. ; 22 cm. ISBN: 0750667834 (pbk.) Subjects--Topical Terms: Electric wiring--Mathematics.Electric circuits. Index Terms--Genre/Form: Electronic books.