MLA

Höfer, Candida, and Umberto Eco. Bibliotheken. München: Schirmer/Mosel, 2005.

APA

Höfer, C., & Eco, U. (2005). Bibliotheken. München: Schirmer/Mosel.

Chicago

Höfer, Candida, and Umberto Eco. Bibliotheken /. München :: Schirmer/Mosel, 2005.