Citazione Stile APA (7a Edizione)

Haxthausen, C. W. (2014). Paul Klee, Wihlem Hausenstein, and "the Problem of Style". Kritische Berichte.

Citazione stile Chigago Style (17a edizione)

Haxthausen, Charles W. "Paul Klee, Wihlem Hausenstein, and "the Problem of Style"." Kritische Berichte 2014.

Citatione MLA (8a ed.)

Haxthausen, Charles W. "Paul Klee, Wihlem Hausenstein, and "the Problem of Style"." Kritische Berichte, 2014.