Drinking water quality-control and surveillance of water in public supply networks/ 
Malawi Bureau Standards 
 - Blantyre:  Malawi standards board,  2005 
 - 3p. 
 - Malawi Standard  ICS 91.140.60;13.060.20.  .
<br/><br/><label>LC Class. No.: </label>TA368  / DRI 2005