Não informado. (2001). Scientific investigations. Scottish Home Department, Department of Agriculture and Fisheries.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Scientific Investigations. Edinburgh, Inglaterra: Scottish Home Department, Department of Agriculture and Fisheries, 2001.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Scientific Investigations. Scottish Home Department, Department of Agriculture and Fisheries, 2001.
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