APA (7th ed.) Citation

Christos, T., Forshey, D. R., & Hartstein, A. M. (1977). Coal mine combustion products: Ingredients of conveyor belts. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Christos, Theodore, David R. Forshey, and Arthur M. Hartstein. Coal Mine Combustion Products: Ingredients of Conveyor Belts. [Washington]: Dept. of the Interior, Bureau of Mines, 1977.

MLA (9th ed.) Citation

Christos, Theodore, et al. Coal Mine Combustion Products: Ingredients of Conveyor Belts. Dept. of the Interior, Bureau of Mines, 1977.