Dara, S. S. and Umare, S. S. A textbook of engineering chemistry / - 12th ed. - New Delhi : S. Chand & Company Limited, c2017. - xvi, 972p. : ill. ; 24 cm. Includes index. ISBN: 9788787903592 LC Class. No.: 20719 Dewey Class. No.: 660 / DAR