-
1991
-
1992
-
1993
-
1994
Geologic hazards a field guide for geotechnical engineers
Publicat 2007Table of contents only
Llibre -
1995
-
1996
Amendments to department Administrative Order No. 96-40, as amended
Publicat a Philippine Star (2007)Article -
1997
-
1998
-
1999
Guidelines for DENR accreditation of third party source emission testing firms
Publicat a Philippine Star (2007)Article -
2000


