Plummer, W. B., & Rice, S. O. (1940). The story of petroleum; a history of the development of crude oil and its products, together with a surveyof the industry, its occupation and the opportunities they offer today. Encyclopedia britannica.
Chicago Style (17th ed.) CitationPlummer, William B., and Samuel Orrick Rice. The Story of Petroleum; a History of the Development of Crude Oil and Its Products, Together with a Surveyof the Industry, Its Occupation and the Opportunities They Offer Today. Chicago, Ill: Encyclopedia britannica, 1940.
MLA (9th ed.) CitationPlummer, William B., and Samuel Orrick Rice. The Story of Petroleum; a History of the Development of Crude Oil and Its Products, Together with a Surveyof the Industry, Its Occupation and the Opportunities They Offer Today. Encyclopedia britannica, 1940.