GSI Glider Sports International
Posted: Fri Aug 31, 2018 10:41 amGlider Sports International (GSI) no longer exists.
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One starting point in 1976 is a NYT article mentioning both USHGA and GSI
HERE
"I'm not coming down!"
by Bruce Porter, Aug. 15 1976
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One starting point in 1976 is a NYT article mentioning both USHGA and GSI
HERE
"I'm not coming down!"
by Bruce Porter, Aug. 15 1976
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