Indian standard code of basic requirements for water supply drainage and sanitation 
Indian Standards Institution 
 - New Delhi  Indian Standards Institution  1971 
 - 18p. 
<br/><br/> IS 1172 : 1971 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Sewage-Standards<br/> Standards <br/> Water Supply <br/>NASA Thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>083.7:628.1  / ISI