Michaud, Alexis. 2017. Tone in Yongning Na. Berlin: Language Science Press.
@book{jacquesestimative-michaud17yongning,
address = {Berlin},
author = {Michaud, Alexis},
publisher = {Language Science Press},
title = {Tone in Yongning Na},
url = {http://langsci-press.org/catalog/book/109},
year = {2017}
}