Lua APA (7ú heag.)

Sengers, W. J. 1. -. 2. .

Lua i Stíl Chicago (17ú heag.)

Sengers, Wijnandus Johannes 1927 - 2002. .

Lua MLA (8ú heag.)

Sengers, Wijnandus Johannes 1927 - 2002. .

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.