Have you a strong will? or, How to develop and strengthen will-power, memory, or any other faculty or attribute of the mind, by the easy process of self-hypnotism / by Charles Godfrey Leland.
- Leland, Charles Godfrey, 1824-1903
- Date:
- 1912
Licence: In copyright
Credit: Have you a strong will? or, How to develop and strengthen will-power, memory, or any other faculty or attribute of the mind, by the easy process of self-hypnotism / by Charles Godfrey Leland. Source: Wellcome Collection.
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