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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc. Financing Vaccines in the 21st Century: Assuring Access and Availability. Washington, D.C.: National Academies Press, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc. Financing Vaccines in the 21st Century: Assuring Access and Availability. National Academies Press, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.