Dyfyniad APA

Huaying, H. (1989). Chemistry, geochemistry and surface chemistry of coals from Shanxi Province, People's Republic of China. University of London.

Dyfyniad Arddull Chicago

Huaying, Huai. Chemistry, Geochemistry and Surface Chemistry of Coals from Shanxi Province, People's Republic of China. University of London, 1989.

Dyfyniad MLA

Huaying, Huai. Chemistry, Geochemistry and Surface Chemistry of Coals from Shanxi Province, People's Republic of China. University of London, 1989.

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