(2000). Major highlights of DENR accomplishments (July 1998-December 1999). Journal on Environment, Energy and Minerals.
Chicago-viite (17. p.)"Major Highlights of DENR Accomplishments (July 1998-December 1999)." Journal on Environment, Energy and Minerals 2000.
MLA-viite (9. p.)"Major Highlights of DENR Accomplishments (July 1998-December 1999)." Journal on Environment, Energy and Minerals, 2000.
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