Lua APA (7ú heag.)

Göttner, R. (1973). Was soll - was kann Prognostik? Urania.

Lua i Stíl Chicago (17ú heag.)

Göttner, Reinhard. Was Soll - Was Kann Prognostik? Leipzig: Urania, 1973.

Lua MLA (8ú heag.)

Göttner, Reinhard. Was Soll - Was Kann Prognostik? Urania, 1973.

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