Riggs, C. (2018). Widow's wreath: A Martha's Vineyard mystery (First edition.). Crooked Lane.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRiggs, Cynthia. Widow's Wreath: A Martha's Vineyard Mystery. First edition. New York: Crooked Lane, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRiggs, Cynthia. Widow's Wreath: A Martha's Vineyard Mystery. First edition. Crooked Lane, 2018.
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