Abello, M. M. (2013). Ifugao rice terraces restored, seen to enhance heirloom rice production. Agriculture.
Čikaški stil citiranja (17. izdanje)Abello, Melpha M. "Ifugao Rice Terraces Restored, Seen to Enhance Heirloom Rice Production." Agriculture 2013.
MLA način citiranja (9. izdanje)Abello, Melpha M. "Ifugao Rice Terraces Restored, Seen to Enhance Heirloom Rice Production." Agriculture, 2013.
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