APA (7th ed.) Citation

Midwest Bituminous Coal Conference Purdue University. (1930). Proceedings of the Midwest Bituminous Coal Conference held at Purdue University, April 9-10-11, 1930. Purdue University.

Chicago Style (17th ed.) Citation

Midwest Bituminous Coal Conference Purdue University. Proceedings of the Midwest Bituminous Coal Conference Held at Purdue University, April 9-10-11, 1930. Lafayette, Ind.: Purdue University, 1930.

MLA (9th ed.) Citation

Midwest Bituminous Coal Conference Purdue University. Proceedings of the Midwest Bituminous Coal Conference Held at Purdue University, April 9-10-11, 1930. Purdue University, 1930.