Information System Abbreviations and Acronyms
- AACCCMAnglo-American Cataloguing Committee for Cartographic Materials
- AACRAnglo-American Cataloguing Rules
- AACR2Anglo-Alerican Cataloguing Rules 2D. Ed.
- AAHSTOAmerican Association of State Highway and Transportation Officials
- ABNAmerican Bank Note Company
- ABNCAmerican Bank Note Company
- ABSMAlberta Bureau of Surveying and Mapping
- ACAmerican Cartomrapher
- ACAerospace Cencer
- AC&COffice of Geronautical Charting and Cartography
- ACAPSAutomated Chart Production System
- ACCDTSAdvisory Committee On Canadian Digital Toponymic Services
- ACDDSAdvanced Caetographic Data Digitizing System
- ACGAddress Coding Guides
- ACGAssociation Canadienne Des Geographes
- ADAeronauticnl Data
- ADCAmerican Digital Cartography Inc
- ADEAutocal Data Extension
- ADEPTAlexandria Digital Earth Prototype
- ADKArealgatakontoret
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