Peel 4234 : Mavor, James (1854-1925) [détails]. Government telephones: The experience of Manitoba, Canada. Toronto : Maclean Publishing Co, 1916. .
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Peel 4234 : Mavor, James (1854-1925) [détails]. Government telephones: The experience of Manitoba, Canada. Toronto : Maclean Publishing Co, 1916. .