NASA  / CR-1653 - <br/>
Brown,David <br/>
       INVESTIGATION OF THE INFLUENCE OF DUCT-MOUNTED HELMHOLTZ RESONATORS ON THE SOUND FIELD OF A MODEL DUCTED PROPELLER 
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 .-  Nasa, Washington, D.C.,  1970 
 .- V,57 . 
<br/>Bound With Nasa Cr-1651-55 
<br><U>Copy Details:</u><br> Acc. No.: <b>TR8248</b>, Full Call No.: NASA CR-1653 -,   Item type:  Technical Report , Location: General Stacks, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>