URUGUAY
- Dirección Forestal – MGAP (Ministerio de Ganadería, Agricultura y Pesca)
- Asociación de Forestadores del Centro (AFC)
INTERNATIONAL
- Wolmanized – Pressure treated wood
- Preserved Wood
- Arch Timber Protection
- Wood design & building
- American wood preserving association
- Southern building code
- Southern forest products association
- Southern pine council
- American assoc.state highway & transportation office
- Timber bridge information resource center
- Preservation resource group, inc
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