Cita APA

Giedion-Welcker, C., & Klee, P. (1952). Paul Klee. London: Faber and Faber.

Chicago Style Citation

Giedion-Welcker, Carola, i Paul Klee. Paul Klee. London: Faber and Faber, 1952.

Cita MLA

Giedion-Welcker, Carola, i Paul Klee. Paul Klee. London: Faber and Faber, 1952.

Atenció: Aquestes cites poden no estar 100% correctes.