Syakir A.M.,  <br/><br/>
Multi purpose pulleys 

 - 62 pages :   illustrations ;   22 cm 
 - Science Inventions Series .
 - Science Inventions Series .
<br/><br/> Includes questions and activities ; Includes glossary 
<br/><br/><label>ISBN: </label>9832671507 ; 9789832671503 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers - Fiction.
<br/><br/><label>Dewey Class. No.: </label>428.6