Philippines (Commonwealth). Metropolitan Water District. (1940). Souvenir bulletin: Published on the occasion of the official opening of the Angat-Novaliches Water Supply System and the Metropolitan Water District Office building, February 22, 1940. Bureau of Printing.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPhilippines (Commonwealth). Metropolitan Water District. Souvenir Bulletin: Published on the Occasion of the Official Opening of the Angat-Novaliches Water Supply System and the Metropolitan Water District Office Building, February 22, 1940. Manila: Bureau of Printing, 1940.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPhilippines (Commonwealth). Metropolitan Water District. Souvenir Bulletin: Published on the Occasion of the Official Opening of the Angat-Novaliches Water Supply System and the Metropolitan Water District Office Building, February 22, 1940. Bureau of Printing, 1940.