- Author: Peter F. Drucker Frances Hesselbein Leadership Institute
- Language: English
- Year: 2008
- Author: Peter F. Drucker (Auth.)
- Language: English
- Year: 1993
- Author: Peter F. Drucker (Auth.)
- Language: English
- Year: 1969
- Author: Peter F. Drucker (Auth.)
- Language: English
- Year: 1976
- Author: Peter F. Drucker
- Language: English
- Year: 2006
- Author: Peter F. Drucker
- Language: English
- Year: 2006
- Author: Peter F. Drucker (auth.) Daniel Bell Irving Kristol (eds.)
- Language: German
- Year: 1984
- Author: Peter F Drucker, Joseph A Maciariello
- Language: English
- Year: 2005
- Author: Peter Ferdinand Drucker
- Language: English
- Year: 2007
- Author: Peter F. Drucker
- Language: English
- Year: 2009