Willard, Hobart H. Instrumental methods of analysis [by] Hobart H. Willard, Lynne L. Merritt, Jr. [and] John A. Dean. - 5th ed. - New York, Van Nostrand [1974] - xix, 860 p. illus. ISBN: 0442294794 Subjects--Topical Terms: Instrumental analysis. LC Class. No.: QD79.I5W54 1974