Ponente, N. (1960). Klee: Biographical and critical study. Skira, [distributed by World Pub. Co., Cleveland.
芝加哥风格引文Ponente, Nello. Klee: Biographical and Critical Study. [Lausanne]: Skira, [distributed by World Pub. Co., Cleveland, 1960.
MLA引文Ponente, Nello. Klee: Biographical and Critical Study. Skira, [distributed by World Pub. Co., Cleveland, 1960.
警告：这些引文格式不一定是100％准确.