American Medical Association, National Institute for Occupational Safety and Health (U.S.), American Medical Association Congress on Occupational Health, Hatch, L. L., Doege, T. C., & Wheater, R. H. (1978). Occupational safety and health symposia, 1977. U.S. Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, Division of Technical Services ; For sale by the Supt. of Docs., U.S. G.P.O..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAmerican Medical Association, National Institute for Occupational Safety and Health (U.S.), American Medical Association Congress on Occupational Health, Loren L. Hatch, Theodore C. Doege, এবং Robert H. Wheater. Occupational Safety and Health Symposia, 1977. Cincinnati, Ohio : Washington, D.C.: U.S. Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, Division of Technical Services ; For sale by the Supt. of Docs., U.S. G.P.O., 1978.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিAmerican Medical Association, et al. Occupational Safety and Health Symposia, 1977. U.S. Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, Division of Technical Services ; For sale by the Supt. of Docs., U.S. G.P.O., 1978.