United States. Agency for International Development. (1971). U.S. AID development assistance to the Republic of the Philippines, fiscal year 1971. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Agency for International Development. U.S. AID Development Assistance to the Republic of the Philippines, Fiscal Year 1971. Manila: [s.n.], 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited States. Agency for International Development. U.S. AID Development Assistance to the Republic of the Philippines, Fiscal Year 1971. [s.n.], 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.