National Institute of Environmental Health Sciences. (1972). Environmental health perspectives: EHP. U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Environmental Health Sciences ; Supt. of Docs., U.S. G.P.O., distributor.
Chicago Style (17. basım) AtıfNational Institute of Environmental Health Sciences. Environmental Health Perspectives: EHP. [Research Triangle Park, N.C.] : [Washington, D.C.: U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Environmental Health Sciences ; Supt. of Docs., U.S. G.P.O., distributor, 1972.
MLA (8th ed.) AtıfNational Institute of Environmental Health Sciences. Environmental Health Perspectives: EHP. U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Environmental Health Sciences ; Supt. of Docs., U.S. G.P.O., distributor, 1972.