APA (7th ed.) Citation

Lieberman, J. A., & Langlois, L. (1973). Factors affecting the use of coal in present and future energy markets: A background paper. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Lieberman, Joseph A., and Lucille Langlois. Factors Affecting the Use of Coal in Present and Future Energy Markets: A Background Paper. Washington: U.S. G.P.O., 1973.

MLA (9th ed.) Citation

Lieberman, Joseph A., and Lucille Langlois. Factors Affecting the Use of Coal in Present and Future Energy Markets: A Background Paper. U.S. G.P.O., 1973.