Hoban, Tana. <br/><br/>
Circles, triangles, and squares. 

 - New York :  Macmillan,  1974. 
 - 32 p. :  ill. 
<br/><br/> Geometric concepts are demonstrated in photos. of bubbles, windows, stacks of pipes, tires, boats, and other objects. 
<br/><br/><label>ISBN: </label>0027448304 
<br/><br/><label>LCCN: </label>72093305 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Circle.<br/>Triangle.<br/>Square.
<br/><br/><label>Dewey Class. No.: </label>516