APA (7th ed.) Citation

United States. Army Map Service. (1945). Index map of climate zones: Scale various. published by Army Map Service.

Chicago Style (17th ed.) Citation

United States. Army Map Service. Index Map of Climate Zones: Scale Various. Washington, D.C.: published by Army Map Service, 1945.

MLA (8th ed.) Citation

United States. Army Map Service. Index Map of Climate Zones: Scale Various. published by Army Map Service, 1945.

Warning: These citations may not always be 100% accurate.