APA (7th ed.) Citation

Geological Survey (U.S.). National Mapping Division & Geological Survey (U.S.). (1995). Index to 1: 24,000-scale digital line graph (DLG) and digital elevation model (DEM) data. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). National Mapping Division and Geological Survey (U.S.). Index to 1: 24,000-scale Digital Line Graph (DLG) and Digital Elevation Model (DEM) Data. Reston, Va.: The Survey, 1995.

MLA (9th ed.) Citation

Geological Survey (U.S.). National Mapping Division and Geological Survey (U.S.). Index to 1: 24,000-scale Digital Line Graph (DLG) and Digital Elevation Model (DEM) Data. The Survey, 1995.