McConkey, Edwin D.  <br/>
       Instrument approach aids for helicopters 
 / Edwin D. McConkey and Ronald E. Ace 
 .- Springfield: National Technical Information Service,  1982 
 .- various pagings. 
<br/><u>Subject Headings:</u> <br/>Aerospace;
<br><U>Copy Details:</u><br> Acc. No.: <b>A83427</b>, Full Call No.: ,   Item type:  Technical Report , Location: COMPACT STORAGE (BASEMENT), <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>