Tibor Sekelj. no date. Aruá, Makurap, Žabotí, Arikapó, Tuparí. Ms. 60pp.
@misc{21187, author = {Tibor Sekelj}, howpublished = {Ms.}, pages = {60}, title = {Aruá, Makurap, Žabotí, Arikapó, Tuparí}, year = {no date} }