00319nam a2200109Ia 4500008004100000082002000041100002500061245002900086260005500115300001000170650002900180140113s9999    xx            000 0 und d  a631.413.4.03 H8  a" Kelley, Walter P."  aCation exchange in soils  b"New York : Reinhold publishing corporation, 1948"  a144p.  aCation exchange in soils