Cita APA (7a ed.)

Ragaei, E. M. (1983). Heavy versus light oil: Technical issues and economic considerations. The International Research Center for Energy and Economic Development.

Cita Chicago Style (17a ed.)

Ragaei, El Mallakh. Heavy Versus Light Oil: Technical Issues and Economic Considerations. Colorado: The International Research Center for Energy and Economic Development, 1983.

Cita MLA (9a ed.)

Ragaei, El Mallakh. Heavy Versus Light Oil: Technical Issues and Economic Considerations. The International Research Center for Energy and Economic Development, 1983.