APA (7th ed.) Citation

Grauch, V. J. S., & Drenth, B. J. (2009). High-resolution aeromagnetic survey to image shallow faults, Poncha Springs and vicinity, Chaffee County, Colorado. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Grauch, V. J. S., and Benjamin J. Drenth. High-resolution Aeromagnetic Survey to Image Shallow Faults, Poncha Springs and Vicinity, Chaffee County, Colorado. Reston, Va.: U.S. Geological Survey, 2009.

MLA (9th ed.) Citation

Grauch, V. J. S., and Benjamin J. Drenth. High-resolution Aeromagnetic Survey to Image Shallow Faults, Poncha Springs and Vicinity, Chaffee County, Colorado. U.S. Geological Survey, 2009.