Johnson, D. B. Sources of Nabokov's "Despair": D. Barton Johnson. Nabokov at Cornell.(2003).
Lua i Stíl Chicago (17ú heag.)Johnson, D. Barton. "Sources of Nabokov's "Despair": D. Barton Johnson." Nabokov at Cornell.(2003) .
Lua MLA (8ú heag.)Johnson, D. Barton. "Sources of Nabokov's "Despair": D. Barton Johnson." Nabokov at Cornell.(2003), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.