3G Elearning. <br/><br/>
Plumbing :  advanced / 
3G Elearning. 
 - vi, 370 p. :  col. ill. ;  30 cm. + 1 CD. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9789351159018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plumbing.