TY  - BOOK
AU  - Llewelyn ,Richard Von
TI  - Optimal cropping combinations: economic analysis of food crop production in Madiun , Indonesian
PY  - 1996///
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
N1  - Thesis (Ph.D) - Kansas State University , 1995
ER  -