APA (7th ed.) Citation

Geological Survey (U.S.). (1984). 1:100 000-scale metric topographic map: Indiana, Pennsylvania. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). 1:100 000-scale Metric Topographic Map: Indiana, Pennsylvania. Reston, Va.: The Survey, 1984.

MLA (8th ed.) Citation

Geological Survey (U.S.). 1:100 000-scale Metric Topographic Map: Indiana, Pennsylvania. The Survey, 1984.

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