http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Vertical gates for distribution of irrigation water
Waterloopkundig Laboratorium (Delft, Netherlands)
"Presented at the International Conference on Protection and Development of the Nile and other major rivers, Cairo, Egypt, February 3-5, 1992."
Publication (Waterloopkundig Laboratorium (Delft, Netherlands) : 1987) ; no. 465