ZILBERGELD BERNIE. (1987). MIND POWER: GETTING WHAT YOU WANT THROUGH MENTAL TRAINING. IVY PUBLISHING HOUSE.
Lua i Stíl Chicago (17ú heag.)ZILBERGELD BERNIE. MIND POWER: GETTING WHAT YOU WANT THROUGH MENTAL TRAINING. NEW YORK: IVY PUBLISHING HOUSE, 1987.
Lua MLA (9ú heag.)ZILBERGELD BERNIE. MIND POWER: GETTING WHAT YOU WANT THROUGH MENTAL TRAINING. IVY PUBLISHING HOUSE, 1987.
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