APA (7th ed.) Citation

Wengler, J. (2001). Managing energy risk: A nontechnical guide to markets and trading. Pennwell Corp..

Chicago Style (17th ed.) Citation

Wengler, John. Managing Energy Risk: A Nontechnical Guide to Markets and Trading. Tulsa, OK: Pennwell Corp., 2001.

MLA (9th ed.) Citation

Wengler, John. Managing Energy Risk: A Nontechnical Guide to Markets and Trading. Pennwell Corp., 2001.