Cita APA (7th ed.)

Dirig, R. Theme in blue: Vladimir Nabokov's endangered Butterfly / Robert Dirig. Nabokov at Cornell.(2003).

Cita Chicago (17th ed.)

Dirig, Robert. "Theme in Blue: Vladimir Nabokov's Endangered Butterfly / Robert Dirig." Nabokov at Cornell.(2003) .

Cita MLA (8th ed.)

Dirig, Robert. "Theme in Blue: Vladimir Nabokov's Endangered Butterfly / Robert Dirig." Nabokov at Cornell.(2003), .