Philippines (Republic). National Economic Council. (1967). Economic survey of the province of Bulacan. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). National Economic Council. Economic Survey of the Province of Bulacan. Manila: [s.n.], 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). National Economic Council. Economic Survey of the Province of Bulacan. [s.n.], 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.