Boyce, W. D. (1977). The Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library.
Chicagoスタイル(17版)引用形式Boyce, William Dickson. The Philippine Islands [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
MLA(9版)引用形式Boyce, William Dickson. The Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library, 1977.
警告: この引用は必ずしも正確ではありません.