APA (7th ed.) Citation

United States. Bureau of Land Management. (1994). Montana: Forsyth : 1:100 000-scale topographic map : 30 x 60 minute series (topographic) (BLM ed. 1993.). The Bureau ; U.S. Geological Survey.

Chicago Style (17th ed.) Citation

United States. Bureau of Land Management. Montana: Forsyth : 1:100 000-scale Topographic Map : 30 X 60 Minute Series (topographic). BLM ed. 1993. Reston, Va. : Denver, CO: The Bureau ; U.S. Geological Survey, 1994.

MLA (9th ed.) Citation

United States. Bureau of Land Management. Montana: Forsyth : 1:100 000-scale Topographic Map : 30 X 60 Minute Series (topographic). BLM ed. 1993. The Bureau ; U.S. Geological Survey, 1994.