剧情简介：The original "Master Key System" writings, available only through referrals from one person to another, were a closely guarded secret in Europe for decades. They were considered essentially secret wisdom teachings amongst primarily only the very wealthy. In 1912, Charles F. Haanel published this body of knowledge as a work which he presented as The Master Key System. This mater...(展开全部)
作者：Charles F. Haanel
出版社：Lulu Press
ISBN：9781411673625
