Rodriguez-Rivera, R. (1977). resistance to the whitebacked planthopper Sogatella furcifera (Horvath) i rice varieties [microform]. Photoduplication Service. University of the Philippines Library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Rodriguez-Rivera, Ramon. Resistance to the Whitebacked Planthopper Sogatella Furcifera (Horvath) I Rice Varieties [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Παραπομπή σε μορφή MLA (9th εκδ.)Rodriguez-Rivera, Ramon. Resistance to the Whitebacked Planthopper Sogatella Furcifera (Horvath) I Rice Varieties [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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