Verdick, E. (2019). Germs are not for sharing (Read-Along.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVerdick, Elizabeth. Germs Are Not for Sharing. Read-Along. 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVerdick, Elizabeth. Germs Are Not for Sharing. Read-Along. 2019.
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