^Robb، Andrew (2003). "Laird, David". Dictionary of Canadian Biography, vol. 14. University of Toronto/Universite Laval. مؤرشف من الأصل في 2020-10-25. اطلع عليه بتاريخ 2014-07-07.
^Department of the Interior, Annual Report for the year ended 30th June, 1876 (Parliament, Sessional Papers, No. 11, 1877), p. xiv.
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