Paul Klee : the thinking eye : The notebooks of Paul Klee

MLA

Spiller, Jürg. Paul Klee : the Thinking Eye : The Notebooks of Paul Klee. New York: George Wittenborn, 1961.

APA

Spiller, J. (1961). Paul Klee : the thinking eye : The notebooks of Paul Klee. New York: George Wittenborn.

Chicago

Spiller, Jürg Paul Klee: The Thinking Eye : The Notebooks of Paul Klee. New York: George Wittenborn, 1961.