00543nam a22001817a 4500003000400000008004100004082001800045100001700063245014500080260003900225300001000264502001100274650002400285650002000309650001000329650001100339650001100350OSt250604b |||||||| |||| 00| 0 eng d a630.717bS48A aSingh, Asan. aAdoption of Rice Production Technology in Selected Blocks of Sone and Chandan Command Areas of Bihar : a comparative study / cby Asan Singh a.- Pusa, Samastipurb: RAUc, 1999 a151p. bPh. D. aExtension Education aRice Production aBihar aThesis aPh. D.