Ngā hua rapu - "Drainage Research"
Kāore tō rapu - "Drainage Research" - i ōrite ki tētahi rauemi.
Me whakawhānui atu pea i tō rapu ki teto Ngā āpure katoa.
Ka taea pea ētahi hua anō mā te whakakē i tō uiui rapu.
- Mā te tango tohukī e tukua ai pea he rapu whānui ake: Drainage Research.