Huaying, H. (1989). Chemistry, geochemistry and surface chemistry of coals from Shanxi Province, People's Republic of China. University of London.
Lua i Stíl Chicago (17ú heag.)Huaying, Huai. Chemistry, Geochemistry and Surface Chemistry of Coals from Shanxi Province, People's Republic of China. University of London, 1989.
Lua MLA (8ú heag.)Huaying, Huai. Chemistry, Geochemistry and Surface Chemistry of Coals from Shanxi Province, People's Republic of China. University of London, 1989.
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