RODEI seminar record on engineering materials held at Piplani, Bhopal from <6=six>th to <8=eight>th February <1973=one thousand nine hundred seventythree> Vol. <II=two> 

 - New Delhi  RODEI  1973 
 - D1-1 to F6-5p 
<br/><br/><label>Universal Decimal Class. No.: </label>620.18(063)  / ELE,2.73