Clark, M. H. (2016). As time goes by: A novel (First Simon & Schuster hardcover edition.). Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClark, Mary Higgins. As Time Goes by: A Novel. First Simon & Schuster hardcover edition. New York: Simon & Schuster, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रClark, Mary Higgins. As Time Goes by: A Novel. First Simon & Schuster hardcover edition. Simon & Schuster, 2016.
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