APA-čujuhus (7. p.)
Errera, S., & Brown, S. L. (2002). Fundamentals of trading energy futures & options (2nd ed.). PennWell Corp..
Chicago-čujuhus (17. p.)
Errera, Steven, juo Stewart L. Brown. Fundamentals of Trading Energy Futures & Options. 2nd ed. Tulsa, OK: PennWell Corp., 2002.
MLA-čujuhus (9. p.)
Errera, Steven, juo Stewart L. Brown. Fundamentals of Trading Energy Futures & Options. 2nd ed. PennWell Corp., 2002.
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