Novas vozesSusanne Klengel, Christiane Quandt, Peter W. Schulze, Georg Wink · First published 2013Open the Tome
Business and Career ToolkitSteve Chandler, Duane Black, David Snyder, Terry Beck, Karen Berg, Charlie Hawkins, Roger Dawson, Robin Jay, Peter Wink, Michael Salmon, G. Michael Campbell · First published 2009Open the Tome
