Haspelmath et al. 2005

Haspelmath, Martin and Dryer, Matthew S. and Gil, David and Comrie, Bernard. 2005. The World Atlas of Language Structures. Oxford: Oxford University Press.

@book{haspelmathetal2005,
  address   = {Oxford},
  author    = {Haspelmath, Martin and Dryer, Matthew S. and Gil, David and Comrie, Bernard},
  publisher = {Oxford University Press},
  title     = {The World Atlas of Language Structures},
  year      = {2005}
}