00285nam a2200109Ia 450000500170000000800410001708200160005810000170007424500310009126000450012230000080016720260224041012.0260224s9999||||xx |||||||||||||| ||und||  a631.459 GUP  aGupta, R.K.  0aSoil conservation in India  aDehra Dun, India : Jugal Kishore, c1986  a335