Gibbons, Gail. <br/><br/>
Tunnels / 
by Gail Gibbons. 
 - New York :  Holiday House,  c1984. 
 - <32> p. :  ill. 
<br/><br/> A brief introduction to tunnels--their types, shapes, and parts, and how they are built. 
<br/><br/><label>ISBN: </label>0823405079 
<br/><br/><label>LCCN: </label>83018589 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunnels
<br/><br/><label>LC Class. No.: </label>TA807.G52 1984 
<br/><br/><label>Dewey Class. No.: </label>624.1/93