Abello, M. M. (2013). Ifugao rice terraces restored, seen to enhance heirloom rice production. Agriculture.
Chicago-viite (17. p.)Abello, Melpha M. "Ifugao Rice Terraces Restored, Seen to Enhance Heirloom Rice Production." Agriculture 2013.
MLA-viite (9. p.)Abello, Melpha M. "Ifugao Rice Terraces Restored, Seen to Enhance Heirloom Rice Production." Agriculture, 2013.
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