TY  - BOOK
AU  - 
TI  - Determination of the PH value of sludge, soil, mud and sediment ; and, Lime requirement of soil (1977 version)
SN  - 0117512524
PY  - 1978///
CY  - London
PB  - H. M. S. O.
KW  - Soil acidity
KW  - Measurement
KW  - Standards
KW  - Liming of soils
N1  - Text on inside back cover. - Pierced for binder
ER  -