Individual mental efficiency is an absolute prerequisite to any notable personal achievement or any great individual success. Your mental energies are the forces with which you must wage your battles in this world. Are you fully equipped to take a valiant part in the work of the coming years?
Sprache
Produkt-Hinweis
Dateigröße
ISBN-13
978-1-911535-23-2 (9781911535232)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Klassifikation
