Tables of interference factors for use in wind-tunnel and ground-effect calculations for VTOL-STOL aircraft.
APA Citation
Heyson, H. H. (1962). Tables of interference factors for use in wind-tunnel and ground-effect calculations for VTOL-STOL aircraft. Washington: National Aeronautics and Space Administration.
MLA Citation
Heyson, Harry H. Tables of Interference Factors for Use In Wind-tunnel And Ground-effect Calculations for VTOL-STOL Aircraft. Washington: National Aeronautics and Space Administration, 1962.
Warning: These citations may not always be complete (especially for serials).