Gaya APA

Sakkested, B, A. (1997). The proceedings of the 22rd International Technical Conference on Coal Utilization and Fuel Systems . : Coal & Slurry Technology Association.

Gaya MLA

Sakkested, Barbara, A.. "The proceedings of the 22rd International Technical Conference on Coal Utilization and Fuel Systems". : Coal & Slurry Technology Association, 1997. Text.