Williams, Ivor English for science and engineering/ Ivor Williams. - Boston, Mass. : Thomson 2007 - 1 sound disc : digital 4 3/4 in. ISBN: 1413020860 LC Class. No.: PE1128 .W7254 2007 Dewey Class. No.: PE1128 .W7254 2007 National Library of Medicine Call No.: PE1128 .W7254 2007