APA (7th ed.) Citation

Schobert, H. H. (1987). Coal, the energy source of the past and future. American Chemical Society.

Chicago Style (17th ed.) Citation

Schobert, Harold H. Coal, the Energy Source of the Past and Future. Washington, DC: American Chemical Society, 1987.

MLA (9th ed.) Citation

Schobert, Harold H. Coal, the Energy Source of the Past and Future. American Chemical Society, 1987.