Sethi, G. S. <br/><br/>
Plumber :  trade theory and assignment/test (solved) : sector-construction, construction material and real estate / 
G. S. Sethi.  
 - Daryaganj, New Delhi:   Computech Pub.,  c2017. 
 - viii, 176 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>658-81-7317-855-9 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plumbing.