British Standards Institution. (1973). Methods for the analysis and testing of coal and coke. British Standards Institution.
芝加哥风格引文British Standards Institution. Methods for the Analysis and Testing of Coal and Coke. London: British Standards Institution, 1973.
MLA引文British Standards Institution. Methods for the Analysis and Testing of Coal and Coke. British Standards Institution, 1973.
警告:这些引文格式不一定是100%准确.