The portable MBA in management / Allan R. Cohen.

by Cohen, Allan R.
Published 2002

Influence without authority / Allan R. Cohen and David L. Bradford.

by Cohen, Allan R.
Published 2005

Influence without authority / Allan R. Cohen, David L. Bradford.

by Cohen, Allan R., Bradford, David L.
Published 2017

Managing for excellence : the leadership guide to developing high performance in contemporary organizations / David L. Bradford, Allan R. Cohen.

by Bradford, David L.
Published 1997