Jenks, W. Encyclopaedia of occupational health and safety. International Labour Office.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিJenks, Wilfred. Encyclopaedia of Occupational Health and Safety. Geneva: International Labour Office.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিJenks, Wilfred. Encyclopaedia of Occupational Health and Safety. International Labour Office.