TY  - BOOK
AU  - Edited by John C.F. Tedrow
AU  - John C.F.Tedrow
TI  - Soil science
T2  - No.6
U1  - 630.2 SOI 1968 
PY  - 1968///
CY  - America
PB  - The Willams & Wilkins Company Baltimore Maryland; 
KW  - Soil Science | Journal
N1  - A concept of softening and hardening of clay based upon the change in soil structure by remolding; Alkali versus and acid extraction of soil organic matter; Zine diffusion and distribution coefficients in soil as affected by soil texture zinc concentration
ER  -