Upson, N. (2010). Two for sorrow: A new mystery featuring Josephine Tey (1st U.S. ed.). Harper.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUpson, Nicola. Two for Sorrow: A New Mystery Featuring Josephine Tey. 1st U.S. ed. New York: Harper, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUpson, Nicola. Two for Sorrow: A New Mystery Featuring Josephine Tey. 1st U.S. ed. Harper, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.