TY  - SER
AU  - Butters, B.,
TI  - Soils and Fertilizers Vol. 44(1-6)  Soil and Fertilizers Vol. 44 (Jan - June) 
U1  - 631.4 
PY  - 1981///
CY  - Slough
PB  - Commonwealth Agricultural Bureaux
KW  - Soil Science
ER  -