Dyfyniad APA

MACCOLLUM, D. V. Construction safety planning#David V. MacCollum. Van Nostrand reinhold.

Dyfyniad Arddull Chicago

MACCOLLUM, David V. Construction Safety Planning#David V. MacCollum. Van Nostrand reinhold.

Dyfyniad MLA

MACCOLLUM, David V. Construction Safety Planning#David V. MacCollum. Van Nostrand reinhold.

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