APA (7 ম সংস্করণ) উদ্ধৃতি

British Standards Institution. (1980). Methods for analysis and testing of coal and coke. British Standards Institution.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

British Standards Institution. Methods for Analysis and Testing of Coal and Coke. London: British Standards Institution, 1980.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

British Standards Institution. Methods for Analysis and Testing of Coal and Coke. British Standards Institution, 1980.