Schmidt-Hidding, W. Wit and humour: Wolfgang Schmidt-Hidding. Humor und Witz.(1963).
Lua i Stíl Chicago (17ú heag.)Schmidt-Hidding, Wolfgang. "Wit and Humour: Wolfgang Schmidt-Hidding." Humor Und Witz.(1963) .
Lua MLA (8ú heag.)Schmidt-Hidding, Wolfgang. "Wit and Humour: Wolfgang Schmidt-Hidding." Humor Und Witz.(1963), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.