608.7  / C86d4 <br/>
Crowther, James Gerald <br/>
       Discoveries and inventions of the 20th century 
 / James Gerald Crowther 
 .- 4th rev. 
 .- London: Routledge & K. Paul,  1957 
 .- xvii, 432p . 
<br/><u>Subject Headings:</u> <br/>Inventions;
<br><U>Copy Details:</u><br> Acc. No.: <b>5963</b>, Full Call No.: 608.7 C86d4,   Item type:  Books , Location: COMPACT STORAGE (BASEMENT), <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>