FREUND, HUGO MICROSCOPY ORE APPLIED THEORY AND TECHNIQUE - 0 - NEW YORK-U.S.A. THE MACMILLAN COMPANY 1966 - 607 pag 23 cm - 0 0 . HISTORY-ORE/MICROSCOPY-INVESTIGATION Subjects--Topical Terms: CIENCIAS PURAS Dewey Class. No.: 549 / F82