Dyfyniad APA
Errera, S., & Brown, S. L. (2002). Fundamentals of trading energy futures & options (2nd ed.). PennWell Corp..
Dyfyniad Arddull Chicago
Errera, Steven, and Stewart L. Brown. Fundamentals of Trading Energy Futures & Options. 2nd ed. Tulsa, OK: PennWell Corp., 2002.
Dyfyniad MLA
Errera, Steven, and Stewart L. Brown. Fundamentals of Trading Energy Futures & Options. 2nd ed. PennWell Corp., 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.