Ongpin, M. I. G. (2011). The Manila Polo Club (the Pasay years). Bulletin of the American Historical Collection.
Lua i Stíl Chicago (17ú heag.)Ongpin, Maria Isabel G. "The Manila Polo Club (the Pasay Years)." Bulletin of the American Historical Collection 2011.
Lua MLA (9ú heag.)Ongpin, Maria Isabel G. "The Manila Polo Club (the Pasay Years)." Bulletin of the American Historical Collection, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.