Jack Canfield, Mark Victor Hansen and Les Hewitt
The Power of Focus. How to Hit your Business, Personal and Financial Targets with Confidence and Certainty
Copyright © 2011 Jack Canfield, Mark Victor Hansen and Les Hewitt. All rights reserved
© Колесничеко Н., перевод на русский язык, 2018
© Оформление. ООО «Издательство „Э“», 2018