APA (7th ed.) Citation

Geological Survey (U.S.) & Geological Survey (U.S.). National Mapping Division. Index to orthophotoquad mapping: (monocolor photographic-image maps in standard quadrangle format without topographic detail) : 1:24,000-scale quadrangle mapping. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). National Mapping Division. Index to Orthophotoquad Mapping: (monocolor Photographic-image Maps in Standard Quadrangle Format Without Topographic Detail) : 1:24,000-scale Quadrangle Mapping. Reston, Va.: Geological Survey.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). National Mapping Division. Index to Orthophotoquad Mapping: (monocolor Photographic-image Maps in Standard Quadrangle Format Without Topographic Detail) : 1:24,000-scale Quadrangle Mapping. Geological Survey.