Maddieson, Ian and Precoda, Kristin. 1990. Updating UPSID. In UCLA Working Papers in Phonetics, 104–111. Department of Linguistics, UCLA.
@incollection{maddiesonprecoda1990,
author = {Maddieson, Ian and Precoda, Kristin},
booktitle = {UCLA Working Papers in Phonetics},
pages = {104–111},
publisher = {Department of Linguistics, UCLA},
title = {Updating UPSID},
volume = {74},
year = {1990}
}