translate English to French: The respondent called two witnesses in support of his case, Mr. Karl D. Mackay, an employee of Revenue Canada, and Mr. Tom Johnson, a certified engineering technologist, who is employed at Westinghouse Motor Company Canada Ltd.
L'intimé a convoqué deux témoins, M. Karl D. Mackay, un employé de Revenu Canada, et M. Tom Johnson, un technicien-spécialiste agréé en ingénierie qui travaille pour la société Westinghouse Motor Company Canada Ltd.