University of Delhi

classification cataloguing code ccc library science dewey decimal classification scheme colon classification cc pptx ppt scheme features udc ddc isbd description bibliographic international standard of bibliographic descriptio subject heading together with patterns and examples to guide the c delivering a basic list of essential headings has served as a standard authority list for subjec first published by minnie earl sears in 1923 sears list of subject headings slsh principles cataloguing canons anglo american code aacr 2 aacr database management system (dbms) card catalogue opac information system s.r. ranganathan classified catalogue code mlis blis dla indian association of special libraries library association sla comla ila ifla iaslic