Hoeller, Alfredo. 1932. Grammatik der Guarayo-Sprache. Guarayos, Bolivia: Missionsprokura der P.P. Franziskaner.
@book{Hoeller-1932,
address = {Guarayos, Bolivia},
author = {Hoeller, Alfredo},
publisher = {Missionsprokura der P.P. Franziskaner},
title = {Grammatik der Guarayo-Sprache},
year = {1932}
}