Atlases (Genre/Form Term)

Glossary of the mapping sciences, 1994: atlas (a collection of maps designed to be kept (bound or loose) in a volume)

Reitz, J.M. ODLIS : online dictionary for library and information science, Apr. 10, 2019 (atlas: A bound or boxed collection of maps, usually related in subject or theme, with an index of place names (gazetteer) usually printed at the end. The term was also used in the wider sense of a collection of maps with illustrations of topographical features, portraits, and pictures of plants and animals, mythological scenes, historical events, etc. In most modern atlases, the maps are printed in uniform style and format, on a fairly consistent scale. An atlas may be issued as an independent publication or as accompanying material, with or without descriptive text, plates, charts, tables, etc.)

RDA, via RDA toolkit, Apr. 10, 2019: glossary (atlas: A unit of extent that is a volume of maps or other cartographic content with or without descriptive text. This term applies to cartographic resources.)

Merriam-Webster dictionary online, Apr. 10, 2019 (atlas 3 a : a bound collection of maps often including illustrations, informative tables, or textual matter. b : a bound collection of tables, charts, or plates)

Centro Nacional de Registros (El Salvador). Atlas histórico cartográfico de El Salvador = Historical cartographic atlas of El Salvador, 2012.