Greenberg, Herb.

How to hire and develop your next top performer : = the five qualities that make salespeople great / by: Sweeney, Patrick, (1952-); Weinstein, Harold.; Greenberg, Herb. (Language materials, printed)

Succeed on your own terms = lessons from top achievers around the world on developing your unique potential / by: Greenberg, Herb.; Sweeney, Patrick, (1952-.) (Electronic resources)