Keicher, P. Wittgensteins Fotoalbum: Peter Keicher. Album : Organisationsform narrativer Kohärenz.(2013).
Citazione stile Chigago Style (17a edizione)Keicher, Peter. "Wittgensteins Fotoalbum: Peter Keicher." Album : Organisationsform Narrativer Kohärenz.(2013) .
Citatione MLA (8a ed.)Keicher, Peter. "Wittgensteins Fotoalbum: Peter Keicher." Album : Organisationsform Narrativer Kohärenz.(2013), .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.