Koetzle, H. (2002). Photo icons: Hans-Michael Koetzle. [Red.: Daniela Kumor]. Photo icons ; 1.
Cita Chicago (17th ed.)Koetzle, Hans-Michael. "Photo Icons: Hans-Michael Koetzle. [Red.: Daniela Kumor]." Photo Icons ; 1 2002.
Cita MLA (8th ed.)Koetzle, Hans-Michael. "Photo Icons: Hans-Michael Koetzle. [Red.: Daniela Kumor]." Photo Icons ; 1, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.