United States. National Weather Service & United States. Federal Aviation Administration. (1993). Key to ASOS (Automated Surface Observing System) weather observation. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service : [U.S. Dept. of Transportation, Federal Aviation Administration].
Chicago Style (17th ed.) CitationUnited States. National Weather Service and United States. Federal Aviation Administration. Key to ASOS (Automated Surface Observing System) Weather Observation. [Washington, D.C.?]: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service : [U.S. Dept. of Transportation, Federal Aviation Administration], 1993.
MLA (9th ed.) CitationUnited States. National Weather Service and United States. Federal Aviation Administration. Key to ASOS (Automated Surface Observing System) Weather Observation. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service : [U.S. Dept. of Transportation, Federal Aviation Administration], 1993.