APA

American Petroleum Institute A., Bituminous Coal Research Institute & Bituminous Coal Research Institute. (1969). Study of reactions of sulfur in stack plumes. New York: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, Bituminous Coal Research Institute and Bituminous Coal Research Institute. 1969. Study of reactions of sulfur in stack plumes. New York: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., Bituminous Coal Research Institute and Bituminous Coal Research Institute. (1969). Study of reactions of sulfur in stack plumes. New York: American Petroleum Institute, API.

MLA

American Petroleum Institute API, Bituminous Coal Research Institute and Bituminous Coal Research Institute. Study of reactions of sulfur in stack plumes. New York: American Petroleum Institute, API. 1969.