Eñano, R. S. (1981). Diesel engine deletion rule defined anew. Bulletin Today.
Cita Chicago (17th ed.)Eñano, Ray S. "Diesel Engine Deletion Rule Defined Anew." Bulletin Today 1981.
Cita MLA (9th ed.)Eñano, Ray S. "Diesel Engine Deletion Rule Defined Anew." Bulletin Today, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.