APA (7th ed.) Citation

International Ccnference on Bituminous Coal Pittsburgh. (1927). Proceedings of the International conference on bituminous coal: New developments in utilization. [publisher not identified].

Chicago Style (17th ed.) Citation

International Ccnference on Bituminous Coal Pittsburgh. Proceedings of the International Conference on Bituminous Coal: New Developments in Utilization. [Pittsburgh]: [publisher not identified], 1927.

MLA (9th ed.) Citation

International Ccnference on Bituminous Coal Pittsburgh. Proceedings of the International Conference on Bituminous Coal: New Developments in Utilization. [publisher not identified], 1927.