Brantly, J. E. (1971). History of oil well drilling: A project of the Energy Research and Education Foundation 1971. Gulf Publ. Co.
Chicago-Zitierstil (17. Ausg.)Brantly, John Edward. History of Oil Well Drilling: A Project of the Energy Research and Education Foundation 1971. Houston, Tex: Gulf Publ. Co, 1971.
MLA-Zitierstil (9. Ausg.)Brantly, John Edward. History of Oil Well Drilling: A Project of the Energy Research and Education Foundation 1971. Gulf Publ. Co, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.