Covers: Open Library
- Essential manager's manualHeller, Robert
- Bill GatesHeller, Robert
- Making decisionsHeller, Robert
- Managing changeHeller, Robert, Robert Heller et al.
- The naked investorHeller, Robert
- Stephen CoveyHeller, Robert
- The decision makersHeller, Robert
- Peter DruckerHeller, Robert
- The supermarketersHeller, Robert
- The leadership imperativeHeller, Robert
- The age of the common millionaireHeller, Robert
- DK essential manager's manualHeller, Robert
- The pocket managerHeller, Robert
- The supermanagersHeller, Robert
- The super chiefsHeller, Robert
- The making of managersHeller, Robert
- The European revengeHeller, Robert
- Selling successfullyHeller, Robert
- Roads to successHeller, Robert
- Managing teamsHeller, Robert
- Dealing with peopleHeller, Robert
- Learning to leadHeller, Robert
- Effective leadershipHeller, Robert
- Manager's handbookHeller, Robert
