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Primary view of Clear Blue, Volume 8, Number 3, Summer 1981
Texas Air Control Board
Summer 1981
Primary view of Clear Blue, Volume 9, Number 1, Winter 1981-1982
Texas Air Control Board
Winter 1981
Primary view of Clear Blue, Volume 8, Number 1, Winter 1980-1981
Texas Air Control Board
Winter 1981
Primary view of Clear Blue, Volume 8, Number 2, Spring 1981
Texas Air Control Board
Spring 1981
Primary view of Clear Blue, Volume 8, Number 4, Fall 1981
Texas Air Control Board
Autumn 1981
Primary view of Clear Blue, Volume 9, Number 2, Spring 1982
Texas Air Control Board
Spring 1982
Primary view of Clear Blue, Volume 10, Number 3, Summer-Fall 1983
Texas Air Control Board
Autumn 1983
Primary view of Clear Blue, Volume 9, Number 3, Summer-Fall 1982
Texas Air Control Board
Autumn 1982
Primary view of Clear Blue, Volume 10, Number 1, Winter 1982-1983
Texas Air Control Board
Spring 1983
Primary view of Clear Blue, Volume 10, Number 2, Spring 1983
Texas Air Control Board
Spring 1983