APA

Klee P., Guse E. . G., . (1991). Paul Klee. Munich: Prestel.

Chicago

Klee Paul, Guse Ernst Gerhard, . 1991. Paul Klee. Munich: Prestel.

Harvard

Klee P., Guse E. . G., . (1991). Paul Klee. Munich: Prestel.

MLA

Klee Paul, Guse Ernst Gerhard, . Paul Klee. Munich: Prestel. 1991.