Cavallaro, B. (2019). A question of Holmes (First edition.). Katherine Tegen Books, an imprint of HarperCollinsPublishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCavallaro, Brittany. A Question of Holmes. First edition. New York, NY: Katherine Tegen Books, an imprint of HarperCollinsPublishers, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCavallaro, Brittany. A Question of Holmes. First edition. Katherine Tegen Books, an imprint of HarperCollinsPublishers, 2019.
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