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}
}