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Search results for "observing time"

Filters: 1997 1997 × other other ×
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Air Traffic Control Facilities: Improving Methods to Determine Staffing Requirements: Improving Methods to Determine Staffing Requirements -- Special Report 250  (1997)

Transitions in Work and Learning: Implications for Assessment  (1997)

(NAS Colloquium) Carbon Dioxide and Climate Change  (1997)