Masters, E. L. (1977). Gettysburg, Manila, Acoma [microform]. Photoduplication Service. University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Masters, Edgar Lee. Gettysburg, Manila, Acoma [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citatione MLA (9a ed.)Masters, Edgar Lee. Gettysburg, Manila, Acoma [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.