222 măsuri practice de reducere a costurilor
de:
Bockler, Josef; Killguss, Fritz; Schweisinger, Curt; Schrenckenberger, Walter; Radke, Magnus; Wagner, Manfred; Gilbert, Peter; Sahm, August; Neumann, Erich; Kloppert, Wilhelm; Bronner, Albert; Volk, Paul
(Text tipărit)
