Smith, Ralph Judson, <br/><br/>
Engineering as a career / 
By Ralph j. Smith. 
 - 3 
 - 418 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingeniería--Orientación vocacional
<br/><br/><label>LC Class. No.: </label>TA157  / S52