Klibansky, R., Panofsky, E., & Saxl, F. Die Lehre von den "quattuor humores": Raymond Klibansky. Erwin Panofsky. Melancholie.(1999 (?)).
Cita Chicago (17th ed.)Klibansky, Raymond, Erwin Panofsky, i Fritz Saxl. "Die Lehre Von Den "Quattuor Humores": Raymond Klibansky. Erwin Panofsky." Melancholie.(1999 (?)) .
Cita MLA (8th ed.)Klibansky, Raymond, et al. "Die Lehre Von Den "Quattuor Humores": Raymond Klibansky. Erwin Panofsky." Melancholie.(1999 (?)), .
Atenció: Aquestes cites poden no estar 100% correctes.