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Dyfyniad Arddull ChicagoRoom, Adrian. NTC's Dictionary of Trade Name Origins. Rev. ed. Lincolnwood, Ill., USA : New Delhi: NTC Business Books ; Viva Books Pvt Ltd., 1998.
Dyfyniad MLARoom, Adrian. NTC's Dictionary of Trade Name Origins. Rev. ed. NTC Business Books ; Viva Books Pvt Ltd., 1998.
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