APA

Campbell R. J., Brown P., Folger P. & Library of Congress. (2018). Prospects for coal in electric power and industry. [Washington, D.C.]: Congressional Research Service.

Chicago

Campbell Richard J, Brown Phillip, Folger Peter and Library of Congress. 2018. Prospects for coal in electric power and industry. [Washington, D.C.]: Congressional Research Service.

Harvard

Campbell R. J., Brown P., Folger P. and Library of Congress. (2018). Prospects for coal in electric power and industry. [Washington, D.C.]: Congressional Research Service.

MLA

Campbell Richard J, Brown Phillip, Folger Peter and Library of Congress. Prospects for coal in electric power and industry. [Washington, D.C.]: Congressional Research Service. 2018.