Fisher, J. (2013). Christian Petzold. University of Illinois Press.
Chicago-čujuhus (17. p.)Fisher, Jaimey. Christian Petzold. Urbana: University of Illinois Press, 2013.
MLA-čujuhus (9. p.)Fisher, Jaimey. Christian Petzold. University of Illinois Press, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.