Levinsohn, Stephen H. and Maffla B., Alonso and Tandioy Ch., Domingo. 1978. Apuntes sobre la gramática inga. Lomalinda: Editorial Townsend. 34pp.
http://www.sil.org/americas/colombia/pubs/abstract.asp?id=16670
@book{sLevinsohnInga, author = {Levinsohn, Stephen H. and Maffla B., Alonso and Tandioy Ch., Domingo}, pages = {34}, publisher = {Lomalinda: Editorial Townsend}, title = {Apuntes sobre la gramática inga}, url = {http://www.sil.org/americas/colombia/pubs/abstract.asp?id=16670}, year = {1978} }