2 E-böcker av Sheldon Waters
Sheldon Waters: Drug Use in Aviation
The use of over-the-counter (OTC), prescription, and illicit drugs is increasing in the U.S. population. The National Transportation Safety Board (NTSB) is concerned about the possible safety implica …
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DRM
€236.87
Dianna Harrington: Water Resources in the United States
The 114th Congress faces many water resource development, management, and protection issues. Congressional actions shape reinvestment in aging federal infrastructure (e.g., dams, locks, and levees) a …
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DRM
€120.48