Usher, S. (2014). Letters of note: An eclectic collection of correspondence deserving of a wider audience. Chronicle Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUsher, Shaun. Letters of Note: An Eclectic Collection of Correspondence Deserving of a Wider Audience. San Francisco: Chronicle Books, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUsher, Shaun. Letters of Note: An Eclectic Collection of Correspondence Deserving of a Wider Audience. Chronicle Books, 2014.
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