TY  - BOOK
AU  - Clarke , G.R. 
TI  - Soil acidity and its relation to the production of nitrate and ammonia in woodland soils
U1  - 631.42 21st ed.
PY  - 1924///
CY  - Oxford
PB  - Clarendon Press
KW  - Soil acidity
KW  - Soil types (Ecological)
KW  - Soils
KW  - Woodland soils
ER  -