Jarden, Dov. <br/><br/>
Constructions with the bi-ruler and with the double-ruler. 

 - Jerusalem,  1964. 
 - 128 p.  illus.  28 cm. 
<br/><br/>Bibliography: p. 124-126. 
<br/><br/><label>LCCN: </label>he 68003611  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometrical constructions.<br/>Rulers (Instruments)
<br/><br/><label>LC Class. No.: </label>QA464  / .J34