Society of Petroleum Engineers. (1982). Economics and finance. Society of Petroleum Engineers.
Cita Chicago Style (17a ed.)Society of Petroleum Engineers. Economics and Finance. Texas: Society of Petroleum Engineers, 1982.
Cita MLA (8a ed.)Society of Petroleum Engineers. Economics and Finance. Society of Petroleum Engineers, 1982.
Precaución: Estas citas no son 100% exactas.