SCHOBERT, H. H. (1987). Coal the energy source of the past and future.
Chicago Style (17th ed.) CitationSCHOBERT, Harold H. Coal the Energy Source of the Past and Future. 1987.
MLA (8th ed.) CitationSCHOBERT, Harold H. Coal the Energy Source of the Past and Future. 1987.
Warning: These citations may not always be 100% accurate.