Kervill, Gregg Practical guide to the low voltage directive/ Gregg Kervill - Oxford: Newness, 1998 - 203 p.: ill., plates; 24 cm. Includes index ISBN: 0750637455 $ 35.00 Subjects--Topical Terms: VoltmetersElectric metersLow voltage systems Dewey Class. No.: 621.3743