Sinclair J Maxine : A psychological evaluation of three types of labour management.
1996
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Sinclair James B : Three places in New England : a New England symphony : first orchestral set / full orchestration restored and edited by J.B. Sinclair.
Sinclair Robert 1900 : The faithful fibre : the story of the development of the Linen Thread Company Limited and its subsidiaries / [writer: Robert Sinclair].