Estoy Con Vosotros La Tierra Quiere Hablarnos - Linnander S

Autor: LINNANDER STEN

Editorial: SIRIO

Lenguaje: 

ISBN: 9788478087235

Reseña:  The art of concentration is one of the easiest to learn and once you have mastered it is one of the most profitable. This book was written especially for those who want to learn this exquisite and useful art in all its aspects for those wishing to develop the power to focus perfectly at any time and for any purpose for those wishing to make concentration a permanent mental ability.