00403nam a2200145Ia 4500020001800000082001900018100001700037245003800054260003900092300001000131650002000141650002700161650004700188650002200235  a81-7000-006-8  a025.4307 SHA-;  aSehgel, R.L. 0aVargikaran: sidhant avam vyavahar  aNew DelhibS.S. Publicationsc1985  a183p.  aLibrary science  aClassification - Books  aClassification, Colon - Study and teaching  aLibrary education