Perry, A. (2019). Death in focus: An Elena Standish novel (First U.S. edition.). Ballantine Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerry, Anne. Death in Focus: An Elena Standish Novel. First U.S. edition. New York: Ballantine Books, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPerry, Anne. Death in Focus: An Elena Standish Novel. First U.S. edition. Ballantine Books, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.