Crucial confrontations. Tools for resolving broken promises, violated expectations and bad behaviorRon McMillanAusverkauft4,1Bewachen
Coaching for performance : growing people, performance and purposeJohn WhitmoreAusverkauft4,1Bewachen
The gentle discipline book : how to raise co-operative, polite and helpful childrenSarah SmithAusverkauft4,1Bewachen
