TY  - BOOK
AU  - Spencer,R.
TI  - Analyt.meth.at present used to determine plant nutrient status & readily available nutrients in soil by Fed.Dep.Agr.Res
PY  - 1961///
PB  - Ibadan,Fed.Dep.of Agr.Res.Moor Plant,Memorandum N°30,26pp.
ER  -