APA (7th ed.) Zitazioa
Calverley, J. The Investor's Guide to Economic Fundamentals. Wiley.
Chicago Style (17th ed.) Zitazioa
Calverley, John. The Investor's Guide to Economic Fundamentals. Sussex Occidental, Inglaterra: Wiley.
MLA (9th ed.) Zitazioa
Calverley, John. The Investor's Guide to Economic Fundamentals. Wiley.
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