Whitehead, J. B. Impregnated paper insulation - New York: John Wiley & Sons, 1935. - xiii, 221p.: ill.; 22.5 cm. - National Research Council Committee on Electrical Insulation Monograph No.4 . Includes index. Includes bibliographical references. Subjects--Topical Terms: Electrical insulationTransformer insulationDielectric materials Dewey Class. No.: 621.31937 / WHI