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william d spears
2 cilt bulundu.
Cilt sonuçları
An unobtrusive measure of the recreational value of a lake
William D. Spears · Water Resources Research Institute, Auburn University
15 sayfa · 1977
Evaluation / Lakes / Methodology / Recreational surveys / Recreational use
Evaluation of a visual system in its support of simulated helicopter flight
William D. Spears · Seville Training Systems
Sayfa sayısı yok · 1986
Flight simulation / Helicopters / Visual flight systems