Sethi, P. D. Quantitative analysis of drugs in pharmaceutical formulations / P D Sethi. - 3rd ed. - New Delhi : CBS, 1997. - xxv, 643 p. : ill. ; 25 cm. Includes index. ISBN: 8123905602 Subjects--Topical Terms: Drugs -- Analysis. Dewey Class. No.: 615.1922 / SEQ