Ruff, H. J. (1984). Making money: Winning the battle for middle class financial success. New York: Simon and Schuster.
Παραπομπή Chicago StyleRuff, Howard J. Making Money: Winning the Battle for Middle Class Financial Success. New York: Simon and Schuster, 1984.
Παραπομπή MLARuff, Howard J. Making Money: Winning the Battle for Middle Class Financial Success. New York: Simon and Schuster, 1984.
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