Citazione Stile APA (7a Edizione)

Kudielka, R., & Riley, B. (2002). Paul Klee: The nature of creation ; works 1914 - 1940 / Robert Kudielka. Hayward Gallery.

Citazione stile Chigago Style (17a edizione)

Kudielka, Robert, e Bridget Riley. Paul Klee: The Nature of Creation ; Works 1914 - 1940 / Robert Kudielka. London: Hayward Gallery, 2002.

Citatione MLA (8a ed.)

Kudielka, Robert, e Bridget Riley. Paul Klee: The Nature of Creation ; Works 1914 - 1940 / Robert Kudielka. Hayward Gallery, 2002.