APA (7 वां संस्करण) प्रशस्ति पत्र
Frede, V. (2011). Doubt, atheism, and the nineteenth-century Russian intelligentsia. University of Wisconsin Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Frede, Victoria. Doubt, Atheism, and the Nineteenth-century Russian Intelligentsia. Madison: University of Wisconsin Press, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Frede, Victoria. Doubt, Atheism, and the Nineteenth-century Russian Intelligentsia. University of Wisconsin Press, 2011.
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