Mechanical failures prevention group. <br/><br/>
MFPG engineering design 

 - Washington :   National Bureau of Standards,   1977. 
 - Special Publications ; 487 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>DISEŅO<br/>INGENIERIA
<br/><br/><label>Universal Decimal Class. No.: </label>744