MLA

Nabokov, Vladimir Vladimirovich. Nabokov's Butterflies : Unpublished and Uncollected Writings. Boston, Mass.: Beacon Press, 2000.

APA

Nabokov, V. Vladimirovich. (2000). Nabokov's butterflies : unpublished and uncollected writings. Boston, Mass.: Beacon Press.

Chicago

Nabokov, Vladimir Vladimirovich, Nabokov's Butterflies : Unpublished and Uncollected Writings. Boston, Mass.: Beacon Press,, 2000.