The 80/20 Principle
By Richard Koch
Genres: business
Recordings
Narrated by Richard Aspel
- Runtime: 9 h 13 min
- Publisher: Bolinda audio
- Released: 2007
- ASIN (us): B002VA9F4O
- 25 chapters
Narrated by Richard Koch
- Runtime: 6 h 47 min
- Publisher: Nightingale-Conant
- Released: 2014
- ASIN (us): B00O9GSWRE
- 11 chapters