Busby, R. L., & Technology, I. o. G. (1999). Natural gas in nontechnical language. Tulsa, OK : Pennwell.
Cita Chicago Style (17a ed.)Busby, Rebecca L., y Institute of Gas Technology. Natural Gas in Nontechnical Language. Tulsa, OK : Pennwell, 1999.
Cita MLA (9a ed.)Busby, Rebecca L., y Institute of Gas Technology. Natural Gas in Nontechnical Language. Tulsa, OK : Pennwell, 1999.
Precaución: Estas citas no son 100% exactas.