APA (7th ed.) Citation

Geological Survey (U.S.) & Geological Survey (U.S.). National Mapping Division. Status of topographic mapping: (7 1/2 and 15 minute series). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). National Mapping Division. Status of Topographic Mapping: (7 1/2 and 15 Minute Series). Reston, Va.: U.S. Geological Survey.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). National Mapping Division. Status of Topographic Mapping: (7 1/2 and 15 Minute Series). U.S. Geological Survey.