(2004). Ibon facts and figures 2004. Ibon Foundation Databank and Research Center.
Čikaški stil citiranja (17. izdanje)Ibon Facts and Figures 2004. Manila: Ibon Foundation Databank and Research Center, 2004.
MLA način citiranja (9. izdanje)Ibon Facts and Figures 2004. Ibon Foundation Databank and Research Center, 2004.
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