Walawala, J. J. (1977). Survey and pathogenecity of plant parasitic nematodes associated with corn [microform]. Photoduplication Service. University of the Philippines Library.
芝加哥风格引文Walawala, Justino Jumamoy. Survey and Pathogenecity of Plant Parasitic Nematodes Associated with Corn [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA引文Walawala, Justino Jumamoy. Survey and Pathogenecity of Plant Parasitic Nematodes Associated with Corn [microform]. Photoduplication Service. University of the Philippines Library, 1977.
警告：这些引文格式不一定是100％准确.