APA (7th ed.) Citation

Geological Survey & United States. Federal Geographic Data Committee. Geological Data Subcommittee. (2008). FGDC Digital cartographic standard for geologic map symbolization (Postscript implementation) (Version 1.0, May 16, 2008.). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey and United States. Federal Geographic Data Committee. Geological Data Subcommittee. FGDC Digital Cartographic Standard for Geologic Map Symbolization (Postscript Implementation). Version 1.0, May 16, 2008. Reston, VA: U.S. Geological Survey, 2008.

MLA (8th ed.) Citation

Geological Survey and United States. Federal Geographic Data Committee. Geological Data Subcommittee. FGDC Digital Cartographic Standard for Geologic Map Symbolization (Postscript Implementation). Version 1.0, May 16, 2008. U.S. Geological Survey, 2008.