328666 Wengler, J. (2001). Managing energy risk: A nontechnical guide to markets and trading. Tulsa, OK: Penwell Corporation.
Chicago Style (17th ed.) Citation328666 Wengler, John. Managing Energy Risk: A Nontechnical Guide to Markets and Trading. Tulsa, OK: Penwell Corporation, 2001.
MLA (9th ed.) Citation328666 Wengler, John. Managing Energy Risk: A Nontechnical Guide to Markets and Trading. Tulsa, OK: Penwell Corporation, 2001.
Warning: These citations may not always be 100% accurate.