APA (7th ed.) Zitazioa
Barry, T. (1986). The central America fact book. Grove Press,INC.
Chicago Style (17th ed.) Zitazioa
Barry, Tom. The Central America Fact Book. New York: Grove Press,INC, 1986.
MLA (9th ed.) Zitazioa
Barry, Tom. The Central America Fact Book. Grove Press,INC, 1986.
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