Παραπομπή σε μορφή APA (7η εκδ.)

Walawala, J. J. (1977). Survey and pathogenecity of plant parasitic nematodes associated with corn [microform]. Photoduplication Service. University of the Philippines Library.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Walawala, Justino Jumamoy. Survey and Pathogenecity of Plant Parasitic Nematodes Associated with Corn [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

Walawala, Justino Jumamoy. Survey and Pathogenecity of Plant Parasitic Nematodes Associated with Corn [microform]. Photoduplication Service. University of the Philippines Library, 1977.