APA引文

(1991). Coal preparation (5th ed.). Society for Mining, Metallurgy, and Exploration.

Chicago Style (17th ed.) Citation

Coal Preparation. 5th ed. Littleton, Colo: Society for Mining, Metallurgy, and Exploration, 1991.

MLA引文

Coal Preparation. 5th ed. Society for Mining, Metallurgy, and Exploration, 1991.

警告：這些引文格式不一定是100％准確.