Παραπομπή APA
Petzel, T. E. (1989). Financial futures and options: A quide to markets, applications, and strategies. New York: Quorum Books.
Παραπομπή Chicago StylePetzel, Todd E. Financial Futures and Options: A Quide to Markets, Applications, and Strategies. New York: Quorum Books, 1989.
Παραπομπή MLAPetzel, Todd E. Financial Futures and Options: A Quide to Markets, Applications, and Strategies. New York: Quorum Books, 1989.
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