Pande.H.K. Tran.D.V. That.T.T. Improved Upland Rice Farming Systems - Food and Agriculture Organization of the United Nations. Rome 1994 - 117p. ILL.,Fig and Table ISBN: 92-5-103317-X Nat. Bib. No.: 6688 Subjects--Topical Terms: Agriculture Universal Decimal Class. No.: 630 / PAN