APA (7th ed.) Citation

Hamilton, W. H., & Wright, H. R. (1926). The case of bituminous coal. The Macmillan company.

Chicago Style (17th ed.) Citation

Hamilton, Walton Hale, and Helen Russell Wright. The Case of Bituminous Coal. New York: The Macmillan company, 1926.

MLA (9th ed.) Citation

Hamilton, Walton Hale, and Helen Russell Wright. The Case of Bituminous Coal. The Macmillan company, 1926.