00431nam a2200145Ia 4500008004100000020001800041040001700059082002100076100001600097245008400113260003100197300001000228650002000238700002700258190329s9999||||xx |||||||||||||| ||und||  a9789380668178  aNITILcNITIL  221sta020bS531P  aSharma, B K 0aPustakalaya evam suchna vigyanbbahuvikalpiye prashncB K Sharma and U M Thakur  aAgrabY K Publishersc2012  a500p.  aLIBRARY SCIENCE  aThakur, U M, jt. auth.