Hammer, W. (1985). Occupational safety management and engineering (3ª ed.). Prentice Hall.
Chicago Style (17th ed.) CitationHammer, Willie. Occupational Safety Management and Engineering. 3ª ed. Prentice Hall, 1985.
MLA citiranjeHammer, Willie. Occupational Safety Management and Engineering. 3ª ed. Prentice Hall, 1985.
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