Jenny, Hans Factors Of Soil Formation : Systems Of Quantitative Pedology - New York Mcgraw-hill Book Company 1941 - xii,281p.125 figs, 69 tables - MCGRAW-HILL PUB. IN AGRI. SCI. ED. LEON. J. COLE . Subjects--Topical Terms: J:1:1 Dewey Class. No.: J:1:1 / H1