MacCollum, D. V. (2007). Construction safety engineering principles: Designing and managing safer job sites. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)MacCollum, David V. Construction Safety Engineering Principles: Designing and Managing Safer Job Sites. New York: McGraw-Hill, 2007.
Lua MLA (9ú heag.)MacCollum, David V. Construction Safety Engineering Principles: Designing and Managing Safer Job Sites. McGraw-Hill, 2007.
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