APA (7th ed.) Citation

Pierce, B. S. (1999). Coal exploration and resource assessment of Armenia. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Pierce, Brenda S. Coal Exploration and Resource Assessment of Armenia. Reston, VA: U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Pierce, Brenda S. Coal Exploration and Resource Assessment of Armenia. U.S. Geological Survey, 1999.

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