Boyce, W. D. (1977). The Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library.
芝加哥风格引文Boyce, William Dickson. The Philippine Islands [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
MLA引文Boyce, William Dickson. The Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library, 1977.
警告：这些引文格式不一定是100％准确.