TY  - BOOK
AU  - Upawansa,G.K.
TI  - Small-scale integrated farming.Practical manual Improving Soil Fertility through Organic Recycling(FAO UNDP Reg.Proj.RAS75004)
PY  - 0000///s.d
PB  - U.N.:FAO,Proj.Field Doc.N°12,IX,71pp.
ER  -