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david maccollum
4 cilt bulundu.
Cilt sonuçları
Construction safety planning
David V. MacCollum · Van Nostrand Reinhold
285 sayfa · 1995
Building / Civil engineering / Planning / Safety measures / Building, safety measures
Crane hazards and their prevention
David V. MacCollum · American Society of Safety Professionals
171 sayfa · 1993
Cranes, derricks / Safety measures / Cranes, derricks, etc.


