Curwen M. D. Chemistory in commerce a comprehensive practical and authoirtative guide, showing how chemical principles are applied in actual practice.vol. 1. Ed. by M.D. Curwen. Curwen M. D. - London George Newnes UK 1893 - 392p. cm. Standard No.: 26497 Source: Textual Subjects--Topical Terms: ECONOMICS Dewey Class. No.: X8(E), C93