Göttner, R. (1973). Was soll - was kann Prognostik? Urania.
Chicago-Zitierstil (17. Ausg.)Göttner, Reinhard. Was Soll - Was Kann Prognostik? Leipzig: Urania, 1973.
MLA-Zitierstil (8. Ausg.)Göttner, Reinhard. Was Soll - Was Kann Prognostik? Urania, 1973.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.