Johnson, D. B. Sources of Nabokov's "Despair": D. Barton Johnson. Nabokov at Cornell.(2003).
Chicago-Zitierstil (17. Ausg.)Johnson, D. Barton. "Sources of Nabokov's "Despair": D. Barton Johnson." Nabokov at Cornell.(2003) .
MLA-Zitierstil (8. Ausg.)Johnson, D. Barton. "Sources of Nabokov's "Despair": D. Barton Johnson." Nabokov at Cornell.(2003), .
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.