APA (7th ed.) Citation

Gale, T. A. (1952). The wonder of the nineteenth century!: Rock oil in Pennsylvania and elsewhere. Ethyl Corp..

Chicago Style (17th ed.) Citation

Gale, Thomas A. The Wonder of the Nineteenth Century!: Rock Oil in Pennsylvania and Elsewhere. New York: Ethyl Corp., 1952.

MLA (9th ed.) Citation

Gale, Thomas A. The Wonder of the Nineteenth Century!: Rock Oil in Pennsylvania and Elsewhere. Ethyl Corp., 1952.