PKK Library Search for 'au:"Helenbrook, R. G,"'

EVALUATION OF ACTIVE COOLING SYSTEM FOR A MACH 6 HYPERSONIC TRANSPORT AIRFRAME [NASA CR-1917]

By Helenbrook, R. G,. Washington, D.C. NASA 1971 . v, 190p , Bound With NASA CR-1911-19(Bound With Acc No. 101559)

By Helenbrook, R. G.. Washington, D.C. NASA 1971 . viii, 125p , Bound With NASA CR-1911-19((Bound With Acc no. 101559)

By Anthony,F M,Dukes,W H. Nasa, Washington, D.C. 1975 . 44 , Bound With Nasa Cr-2475-79,2481