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Fontes

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• Berlow, Lawrence H. "Shaving Cream". eNotes.com.
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• Blachford, Stacey L. e Bonny P. McClain. "Epilation Device". eNotes.com.
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• "The Cutting Edge". The Economist, 16 de março de 2006.
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• Gillette: Fusion
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• Krumholtz, Philip L. "Col. Jacob Schick". 1987.
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