1. Greater Pittsburgh and Allegheny County (1901) The pioneer oil refiner
. Original from the New York Public Library: The American Manufacturer and Iron World
2. Bell HS (1945) America petroleum refining. Van Nostrand Co., Princeton
3. Gruse WA, Stevens DR (1960) Chemical technology of petroleum. McGraw-Hill Book Company Inc., New York, pp 346–352
4. Pioneer of Catalytic Cracking: Almer McAfee at Gulf Oil (North American Catalysis Society website)
5. Palucka T (2005) The wizard of octane: Eugene Houdry. Invent Technol 20:36–45