Não informado. (1979). Annals of Tropical Research. Visayas State College of Agriculture.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annals of Tropical Research. Baybay Leyte, Filipinas: Visayas State College of Agriculture, 1979.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annals of Tropical Research. Visayas State College of Agriculture, 1979.
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