DAI – Dissertations Abstracts InternationalDARE – Data Retrieval System for Documentation in Social Sciences (UNESCO)
DC – Dictionary Catalogue; Decimal Classification
DCM Z1 – Descriptive Cataloging Manual Z1 (“Yellow Pages”)
DDB – die Deutsche Bibliothek (German National Library)
DDC – Dewey Decimal Classification; Defense Documentation Centre (USA)
DDS – Document Delivery Service
DEC – Distance Education Council
DELNET – Delhi Library Network
DESIDOC – Defense Scientific Information and Documentation Center
DEVSIS – Development Science Information System
DIAL – Division of Information and Library Services (Australia)
DIRKS – Design and Implementation of Recordkeeping Systems
DLA – Delhi Library Association
DLIS – Department of Library and Information Science
DLSc – Diploma in Library Science
DMCA – Digital Millennium Copyright Act
DNB – Dictionary of National Biography (UK & India)
DOCTOR – Dictionary Operation and Control for Thesaurus Organization
DOI – Digital Object Identifier
DRC – Data Referral Centre
DRM – Digital Rights Management
DRTC – Documentation Research and Training Centre
DVD – Digital Video Disc
