Foth, D. (2017). Known: Finding deep friendships in a shallow world.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFoth, Dick. Known: Finding Deep Friendships in a Shallow World. 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFoth, Dick. Known: Finding Deep Friendships in a Shallow World. 2017.
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