Chemical and physical studies of certain hawallan soil profiles
Hough, G.J., Byers, H.G.
Chemical and physical studies of certain hawallan soil profiles - Washington 1937 - 1-26 o. - Chemical, Physical United states Department of Ariculture. Technical Bulletin No. 584 .
Chemical and physical studies of certain hawallan soil profiles - Washington 1937 - 1-26 o. - Chemical, Physical United states Department of Ariculture. Technical Bulletin No. 584 .