West and Welch 2004

West, Birdie and Welch, Betty. 2004. Gramatica pedagógica del tucano. Bogotá: Ed. Buena Semilla. 182pp.

http://www.sil.org/americas/colombia/pubs/abstract.asp?id=49289

@book{gWestWelchTucano,
  author    = {West, Birdie and Welch, Betty},
  pages     = {182},
  publisher = {Bogotá: Ed. Buena Semilla},
  title     = {Gramatica pedagógica del tucano},
  url       = {http://www.sil.org/americas/colombia/pubs/abstract.asp?id=49289},
  year      = {2004}
}