How things work:   the universal encyclopedia of machines. 

 - London:  Paladin,   1972. 
 - 590 s. :  şkl. ;  20 cm 
<br/><br/>Dizin: s.583-590. 
<br/><br/><label>Source: </label> bağış 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical engineering
<br/><br/><label>LC Class. No.: </label>T 47   / H69 1972