TY  - BOOK
AU  - Natavudh Bhasayavan
TI  - Study of rice yields and Farmer's Cultivation Technologies: in Lam Nam Oon Irrigation Area Sakon Nakhon 
U1  - RID.631.7 
PY  - 1982///
CY  - U.S.A.
PB  - Center for Rural Development Louis Berger International
ER  -