Calder, A. B. Photometric methods of analysis [by] A. B. Calder. - New York American Elsevier [1969] - 312 p. illus., plan. 26 cm. 921004 Bibliography: p. 295-305. ISBN: 0444197389 LCCN: 74086906 //r85 Subjects--Topical Terms: Photometry.Spectrophotometry LC Class. No.: QD95 / .C273 1969b Dewey Class. No.: 543/.085