NASA  / TN D-2890 <br/>
Blackshear, W. Thomas <br/>
       A study of solar-system geometric parameters for use as interplanetary navigation aids [NASA TN D-2890] 
 / W. Thomas Blackshear and Kaherine G. Johnson 
 .- Washington, D. C. : NASA,  1965 
 .- 35p. 
.- ( National Aeronautics and Space Administration [NASA]   
<br/><u>Subject Headings:</u> <br/>Geometric;
<br/><U>Author Added Entry: </u><br/>Johnson, Kaherine G. ;
<br><U>Copy Details:</u><br> Acc. No.: <b>64289 D-2890</b>, Full Call No.: NASA TN D-2890,   Item type:  Technical Report , Location: Reference, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>