Nicol, C. Politics: Charles Nicol. The Garland companion to Vladimir Nabokov.(1995).
Lua i Stíl Chicago (17ú heag.)Nicol, Charles. "Politics: Charles Nicol." The Garland Companion to Vladimir Nabokov.(1995) .
Lua MLA (8ú heag.)Nicol, Charles. "Politics: Charles Nicol." The Garland Companion to Vladimir Nabokov.(1995), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.