BTL  / B-419 <br/>
Cowan,F A <br/>
       TELEPHONE CIRCUITS FOR PROGRAM TRANSMISSION 
 / 
 .-  ,  1929 
 .- 14 . 
<br/>Bound With Btl B-403-17,420-73 Lack No.404,406-08,418,421-22,424-26,428,431-32,435,37,438-39,441-45,447-48,450-53,456-59,461,463-64,466-68,470 
<br><U>Copy Details:</u><br> Acc. No.: <b>TR16461</b>, Full Call No.: BTL B-419,   Item type:  Technical Report , Location: General Stacks, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>