(1988). Vitamin A supplemnsts Aguide to their use in the treatment and prevention of vitamin A deficiency and xerophthalmia <i>en</i>.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVitamin A Supplemnsts Aguide to Their Use in the Treatment and Prevention of Vitamin A Deficiency and Xerophthalmia <i>en</i>. 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVitamin A Supplemnsts Aguide to Their Use in the Treatment and Prevention of Vitamin A Deficiency and Xerophthalmia <i>en</i>. 1988.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.