APA (7th ed.) Citation

Geological Survey (U.S.). (1987). 1:100 000-scale metric topographic map of Belfield, North Dakota: 30 X 60 minute series (topographic) (Map edited 1980.). The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). 1:100 000-scale Metric Topographic Map of Belfield, North Dakota: 30 X 60 Minute Series (topographic). Map edited 1980. Reston, Va.: The Survey, 1987.

MLA (9th ed.) Citation

Geological Survey (U.S.). 1:100 000-scale Metric Topographic Map of Belfield, North Dakota: 30 X 60 Minute Series (topographic). Map edited 1980. The Survey, 1987.