Lodge, H. C. (1976). The retention of the Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library.
Lua i Stíl Chicago (17ú heag.)Lodge, Henry Cabot. The Retention of the Philippine Islands [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
Lua MLA (9ú heag.)Lodge, Henry Cabot. The Retention of the Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.