000 00377nam a2200145 4500
005 20130515014537.0
008 111112s9999 xx 000 0 und d
082 0 0 _a690. saf
100 1 _a"0, . "
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245 1 0 _asafety in construction work scaffolding:
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250 _a2 ed.
260 _auk :
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_c1968.
300 _a", 30p.;
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999 _c22168
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