Mansen, Karis and Mansen, Richard A. 1984. Aprendamos guajiro: Gramática pedagógica de guajiro. Lomalinda, Colombia: Editorial Townsend.
@book{Mansen-and-Mansen-1984, address = {Lomalinda, Colombia}, author = {Mansen, Karis and Mansen, Richard A.}, publisher = {Editorial Townsend}, title = {Aprendamos guajiro: Gramática pedagógica de guajiro}, year = {1984} }