Lauchachinda, C. (1977). Congruence of circles associated with a given surface [microform]. Photoduplication Service. University of the Philippines Library.
芝加哥风格引文Lauchachinda, Chintana. Congruence of Circles Associated with a Given Surface [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA引文Lauchachinda, Chintana. Congruence of Circles Associated with a Given Surface [microform]. Photoduplication Service. University of the Philippines Library, 1977.
警告：这些引文格式不一定是100％准确.