80/20 Koch

Bolinda Audio

The 80/20 Individual: The Nine Essentials of 80/20 Success at Work

The 80/20 Principle: The Secret of Achieving More with Less by Richard Koch (2012-02-28)

Les Éditions de l'Homme

Principe 80/20 (French Edition)                  

Business Contact

Het 80/20- principe                              

Nicholas Brealey Publishing

The 80/20 Individual: The Nine Essentials of 80/20 Success at Work

DE L HOMME

Le Principe 80/20                                

Manjul Publishing House

The 80/20 Principle (Marathi Edition)            

Piatkus Books

The 80/20 Manager: Ten ways to become a great leader by Koch, Richard (2013)

Nightingale Conant

The 80/20 Principle                              

Act Si Politon

Manager 80/20