Guyana was a founding member of the Group of 15.
WPF may refer to  :. WebSphere Partition Facility , an IBM facility. WebSphere Partition Facility. WebSphere Partition Facility. Western People 's Front , a political party in Sri Lanka , active in the Western Province. Windows Presentation Foundation , a graphical subsystem for rendering user-interfaces in applications using Microsoft Windows. Windows Presentation Foundation. Windows Presentation Foundation. Wolf Preservation Foundation , an international non-profit organisation. Wolf Preservation Foundation. Wolf Preservation Foundation. Women 's Pro Fastpitch , original name of Women 's Pro Softball League , predecessor to National Pro Fastpitch. National Pro Fastpitch. National Pro Fastpitch. World Population Foundation , founded in 1987 in the Netherlands. World Population Foundation. World Population Foundation. World Pump It Up Festival , an annual competition / event on the dance game Pump It Up. World Pump It Up Festival. World Pump It Up Festival