John Cage - François Morellet - Milan Grygar : Otevrená forma.

MLA

John Cage - François Morellet - Milan Grygar : Otevrená Forma. Praha: Prague City Gallery, 1993.

APA

(1993). John Cage - François Morellet - Milan Grygar : Otevrená forma. Praha: Prague City Gallery.

Chicago

John Cage - François Morellet - Milan Grygar: Otevrená Forma. Praha: Prague City Gallery, 1993.