André Passamar, L'encyclopédie de Treize Magazine, Bradford Northern, Toulouse, Sud-Ouest Presse impression, 2e trimestre 1984, 169 p. (ASINB0014I5GK6), p. 16
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(en) William Cudworth, Historical Notes on the Bradford Corporation : With Records of the Lighting ..., T. Brear, (lire en ligne).