Jarman, Rufus. The energy merchant / Rufus Jerman. - 1st ed. - New York : R. Rosen Press, 1977 - 279 p. : ill. ; 25 cm. Open access. LCCN: 77154071 Subjects--Personal Names: Thomas, Robert E., 1914- Subjects--Topical Terms: Mapco--History.Businessmen--United States--Biography.