Seawright, W. J. (1976). The Philippines and new possessions [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Seawright, William Jordan. The Philippines and New Possessions [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
MLA-referens (9:e uppl.)Seawright, William Jordan. The Philippines and New Possessions [microform]. Photoduplication Service, University of the Philippines Library, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.