Collins, Chris and Gruber, Jeff. 2014. A grammar of ǂHtextdoublegraveoã with vocabulary, recorded utterances and oral texts. Köln: Köppe.
@misc{2988, author = {Collins, Chris and Gruber, Jeff}, title = {A grammar of ǂHtextdoublegraveoã with vocabulary, recorded utterances and oral texts. Köln: Köppe.}, year = {2014} }