Chemical tables for laboratory and industry : matter, number, process / Wolfgang Helbing and Adolf Burkart ; [translated from German by R. Vardharajan and Sudhanshu Gupta]. Chemie-Tabellen für Labor und Betrieb. English Helbing, Wolfgang. Burkart, Adolf, joint author. Chemistry, Technical Tables. TP151 .H3813 540.2 HEC Translation of Chemie-Tabellen für Labor und Betrieb. "A Halsted Press book." Includes index. New York : Wiley, c1979. c1979. 1979 Text 272 p. ; eng engger