Cation exchange in soils / Kelley, Walter Pearson. Kelley, W. P. (Walter Pearson), 1878- Cations. Soils. S591 .K415 631.4 KEC Includes index. Bibliography: p. 127-138. New York : Reinhold Pub. Corp., 1948. 1948. 1948 Text xv, 144 p. : eng American Chemical Society. Monograph series, no. 109 Monograph series (American Chemical Society) ; no. 109.