Wallis, M. (1988). Oil man: The story of Frank Phillips and the bith of Phillips petroleum. New York: Doubleday.
استشهاد بنمط شيكاغوWallis, Michael. Oil Man: The Story of Frank Phillips and the Bith of Phillips Petroleum. New York: Doubleday, 1988.
MLA استشهادWallis, Michael. Oil Man: The Story of Frank Phillips and the Bith of Phillips Petroleum. New York: Doubleday, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.