Henry, S. L. (1989). Paul Klee's pictorial mechanics from physics to the picture plane. Pantheon.
Čikaški stil citiranja (17. izdanje)Henry, Sara Lynn. "Paul Klee's Pictorial Mechanics from Physics to the Picture Plane." Pantheon 1989.
MLA način citiranja (8. izdanje)Henry, Sara Lynn. "Paul Klee's Pictorial Mechanics from Physics to the Picture Plane." Pantheon, 1989.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.