Kozyreva, M., & Kozyreva, E. H.G. Wells and A.K. Tolstoy: Maria Kozyreva. Elena Kozyreva. Lost worlds [&] and mad elephants : literature, science and technology 1700-1990.(1999).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKozyreva, Maria, और Elena Kozyreva. "H.G. Wells and A.K. Tolstoy: Maria Kozyreva. Elena Kozyreva." Lost Worlds [&] and Mad Elephants : Literature, Science and Technology 1700-1990.(1999) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रKozyreva, Maria, और Elena Kozyreva. "H.G. Wells and A.K. Tolstoy: Maria Kozyreva. Elena Kozyreva." Lost Worlds [&] and Mad Elephants : Literature, Science and Technology 1700-1990.(1999), .
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.