Lethen, H. (2002). Cool conduct: The culture of distance in Weimar Germany. University of California Press.
Dyfyniad Arddull ChicagoLethen, Helmut. Cool Conduct: The Culture of Distance in Weimar Germany. Berkeley: University of California Press, 2002.
Dyfyniad MLALethen, Helmut. Cool Conduct: The Culture of Distance in Weimar Germany. University of California Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.