Dyfyniad APA

American Chemical Society. Division of Fuel Chemistry, American Chemical Society. Division of Petroleum Chemistry, & Yen, T. F. (1976). Shale oil, tar sands, and related fuel sources. American Chemical Society.

Dyfyniad Arddull Chicago

American Chemical Society. Division of Fuel Chemistry, American Chemical Society. Division of Petroleum Chemistry, and Teh Fu Yen. Shale Oil, Tar Sands, and Related Fuel Sources. Washington, DC: American Chemical Society, 1976.

Dyfyniad MLA

American Chemical Society. Division of Fuel Chemistry, et al. Shale Oil, Tar Sands, and Related Fuel Sources. American Chemical Society, 1976.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.