Indian standard code of practice for design and construction of septic tanks  pt. 1, small installations 
Indian Standards Institution 
 - New Delhi  Indian Standards Institution  1969 
 - 24p. 
<br/><br/> IS 2470 : Part 1 : 1968 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Septic Tanks<br/> Sewage Works <br/> Standards <br/>NASA Thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>083.7:628.352.001.3  / ISI