The Virtual Economy: Four Useful Distinctions. (1969, December 31). In LotsofEssays.com. Retrieved 03:19, August 26, 2025, from https://www.lotsofessays.com/viewpaper/2001271.html
Lots of Essays. "The Virtual Economy: Four Useful Distinctions." LotsofEssays.com. LotsofEssays.com, (December 31, 1969). Web. 26 Aug. 2025.
Lots of Essays, "The Virtual Economy: Four Useful Distinctions.," LotsofEssays.com, https://www.lotsofessays.com/viewpaper/2001271.html (accessed August 26, 2025)