Buttle, Joseph Walter. Chemistry: a unified approach [by] J. W. Buttle, D. J. Daniels [and] P. J. Beckett. - Washington Butterworths 1966. - viii, 538 p. illus. LCCN: f 31000068 Subjects--Topical Terms: Chemistry LC Class. No.: QD33 / .B94 1966 Dewey Class. No.: 540