APA (7 वां संस्करण) प्रशस्ति पत्र

United States. Department of Health and Human Services. HHS news. U.S. Department of Health and Human Services.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

United States. Department of Health and Human Services. HHS News. [Rockville, MD]: U.S. Department of Health and Human Services.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

United States. Department of Health and Human Services. HHS News. U.S. Department of Health and Human Services.

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