NASA  / TN D-7065 <br/>
Chi,A R <br/>
       A STEP IN TIME : CHANGES IN STANDARD-FREQUENCY AND TIME-SIGNAL BROADCASTS-JANUARY 1,1972 
 / 
 .-  Nasa, Washington, D.C.,  1973 
 .- 31 . 
<br/>Bound With Nasa Tn D-7060-7064,7066-7069 
<br/><U>Author Added Entry: </u><br/>Fosque,H. S;
<br><U>Copy Details:</u><br> Acc. No.: <b>TR12748</b>, Full Call No.: NASA TN D-7065,   Item type:  Technical Report , Location: General Stacks, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>