APA (7th ed.) Citation

National Coal Association & National Mining Association (U.S.). (1982). Facts about coal. [National Coal Association].

Chicago Style (17th ed.) Citation

National Coal Association and National Mining Association (U.S.). Facts About Coal. [Washington, D.C.]: [National Coal Association], 1982.

MLA (9th ed.) Citation

National Coal Association and National Mining Association (U.S.). Facts About Coal. [National Coal Association], 1982.