(NAR) VOL. 19 NO. 3 / JULY - SEPTEMBER 2008
[ DENR MEMORANDUM CIRCULAR NO. 98-06, May 14, 1998 ]
GUIDELINES IN WATER QUALITY MONITORING
Text Available at Office of the National Administrative Register (ONAR), U.P. Law Complex, Diliman, Quezon City
Adopted: 14 May 1998
Source: Supreme Court E-Library
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