TY  - BOOK
AU  - Kelley,W.P.
TI  - Cation exchange in soils
T2  - American Chemical Society. Monograph series,
AV  - S591 .K415
U1  - 631.41 
PY  - 1948///
CY  - New York
PB  - Reinhold Pub. Corp.
KW  - Cations
KW  - Soils
N1  - Bibliography: p. 127-138
ER  -