Bøger af David Conover
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183,95 kr. The National Institute for Occupational Safety and Health (NIOSH) received a request for a health hazard evaluation at a research institution in Colorado. Health and safety management submitted the request because of concern about possible radio frequency and microwave radiation (RF) and sub-RF electromagnetic field (EMF) exposures at the research institution's laboratories and atomic time radio stations. Their findings are detailed within.
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- 183,95 kr.
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409,95 kr. - Bog
- 409,95 kr.
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- 373,95 kr.