Philippine. University. Library. (1974). Philippine union catalog. University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Philippine. University. Library. Philippine Union Catalog. Quezon City: University of the Philippines Library, 1974.
Citatione MLA (9a ed.)Philippine. University. Library. Philippine Union Catalog. University of the Philippines Library, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.