Whorton, J. C., & Whitcomb, P. (1998). Power play: Who's in control of the energy revolution? Pennwell Pub. Co.
Čikaški stil citiranja (17. izdanje)Whorton, J. C., i Paulette Whitcomb. Power Play: Who's in Control of the Energy Revolution? Tulsa: Pennwell Pub. Co, 1998.
MLA način citiranja (8. izdanje)Whorton, J. C., i Paulette Whitcomb. Power Play: Who's in Control of the Energy Revolution? Pennwell Pub. Co, 1998.
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