National Research Council of the Philippines. Documentation Division & Anniversary and Scientific Congress (44th : 1977 : Manila). (1977). Proceedings of the 44th Anniversary and Scientific Congress, Philippine International Convention Center, Roxas Blvd., Manila, 8-9 December 1977. National Research Council of the Philippines.
芝加哥风格引文National Research Council of the Philippines. Documentation Division 与 Anniversary and Scientific Congress (44th : 1977 : Manila). Proceedings of the 44th Anniversary and Scientific Congress, Philippine International Convention Center, Roxas Blvd., Manila, 8-9 December 1977. Bicutan, Tagig, Metro Manila: National Research Council of the Philippines, 1977.
MLA引文National Research Council of the Philippines. Documentation Division 与 Anniversary and Scientific Congress (44th : 1977 : Manila). Proceedings of the 44th Anniversary and Scientific Congress, Philippine International Convention Center, Roxas Blvd., Manila, 8-9 December 1977. National Research Council of the Philippines, 1977.