Kuschel, K. (2015). Martin Buber: seine Herausforderung an das Christentum: Karl-Josef Kuschel. Compass-Infodienst : Online-Extra.
Citazione stile Chigago Style (17a edizione)Kuschel, Karl-Josef. "Martin Buber: Seine Herausforderung an Das Christentum: Karl-Josef Kuschel." Compass-Infodienst : Online-Extra 2015.
Citatione MLA (8a ed.)Kuschel, Karl-Josef. "Martin Buber: Seine Herausforderung an Das Christentum: Karl-Josef Kuschel." Compass-Infodienst : Online-Extra, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.