APA (7th ed.) Zitazioa
McKellar, R. (2010). A short guide to political risk. Gower.
Chicago Style (17th ed.) Zitazioa
McKellar, Robert. A Short Guide to Political Risk. Farnham ; Burlington, Vt.: Gower, 2010.
MLA (9th ed.) Zitazioa
McKellar, Robert. A Short Guide to Political Risk. Gower, 2010.
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