Philippine Islands. Bureau of Public Works. (1911). Bureau of Public Works. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippine Islands. Bureau of Public Works. Bureau of Public Works. Manila: [s.n.], 1911.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippine Islands. Bureau of Public Works. Bureau of Public Works. [s.n.], 1911.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.