00420nam a2200133Ia 4500008004100000082001800041100003700059245003300096260004200129300000800171650004100179650003400220653003200254170901s1957    xx            000 0 und d  a630.717bA38G  aAllahabad Agriculture University 0aGaonsathibVistar mai Prayog  aBombaybOxford University Pressc1957  a218  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural extension work