1. Gas & Oil Power;Walton,1938
2. Diesel Power and Diesel Transportation;Martinez de Vedia,1994
3. Dual fuel diesel engines using cotton-seed oil with variable injection timing;Huguenard,1951
4. Sunflower seed oil as an extender for diesel fuel in agricultural tractors;Bruwer,1980
5. Vegetable oil fuels;Varde,1982