Kopper, J. M. Correspondence: John M. Kopper. The Garland companion to Vladimir Nabokov.(1995).
Cita Chicago (17th ed.)Kopper, John M. "Correspondence: John M. Kopper." The Garland Companion to Vladimir Nabokov.(1995) .
Cita MLA (8th ed.)Kopper, John M. "Correspondence: John M. Kopper." The Garland Companion to Vladimir Nabokov.(1995), .
Atenció: Aquestes cites poden no estar 100% correctes.