APA (7th ed.) Citation

Johnson, R. B. (1974). Geologic map of the Apache Springs quadrangle, San Miguel County, New Mexico. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Johnson, Ross B. Geologic Map of the Apache Springs Quadrangle, San Miguel County, New Mexico. Reston, Va.: U.S. Geological Survey, 1974.

MLA (9th ed.) Citation

Johnson, Ross B. Geologic Map of the Apache Springs Quadrangle, San Miguel County, New Mexico. U.S. Geological Survey, 1974.