Electrical craft principles : vol. 1 / John Whitfield. Electrical craft principles. Whitfield, John Frederic. Electrical engineering. TK146 .W441 2008eb TK146 621.3 WHE Includes index. Stevenage, Eng. : Institution of Engineering and Technology, c2008. c2008. 2008 Text xix, 320 p. : eng IET Digital Library - Books Crafts studies