APA (7th ed.) Citation

Humphries, M. (2018). U.S. coal exports ([Library of Congress public edition].). Congressional Research Service.

Chicago Style (17th ed.) Citation

Humphries, Marc. U.S. Coal Exports. [Library of Congress public edition]. [Washington, D.C.]: Congressional Research Service, 2018.

MLA (9th ed.) Citation

Humphries, Marc. U.S. Coal Exports. [Library of Congress public edition]. Congressional Research Service, 2018.

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