00274nam a2200109Ia 450000500170000000800410001708200140005810000170007224500250008926000420011430000080015620260224040907.0260224s9999||||xx |||||||||||||| ||und||  a631.4 SAH  aSahai, V.N.  0aFundamentals of soil  aLudhiana : Kalyani Publicationsc2005  a301