Duggal, K. N. <br/><br/>
Elements of public health engineering / 
K N Duggal  
 - Delhi,  Chand,   c1967. 
 - xv,412p.:  ill.  22 cm. 
<br/><br/>
<br/><br/><br/>English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health<br/>Sanitation<br/>Medicine, Preventive
<br/><br/><label>Dewey Class. No.: </label>628/DUE