Code of practice for installation of septic tanks  Part I design criteria and construction/2nd rev. 

 - 2nd rev. 
 - New Delhi  Indian standards institution  1986 
<br/><br/><label>Subjects--Index Terms: </label>IS:2470(Part 1)-1985 
<br/><br/><label>Dewey Class. No.: </label>628.352:69.001.3