TWENHOFEL, W. H. PRINCIPLES OF SEDIMENTATION - 2 - NEW YORK-U.S.A. MCGRAW-HILL BOOK COMPANY 1950 - 673 pag 23 cm - 0 0 . CLASSIFICATION-ORIGEN/SEDIMENTS-ROCK Subjects--Topical Terms: CIENCIAS PURAS Dewey Class. No.: 551.3 / T98