Shefts-Chang, Betty. 1971. The Tibetan Causative: Phonology. Bulletin of the Institute of History and Philology 42. 623-765.
@article{jacquesestimative-shefts1971causative,
author = {Shefts-Chang, Betty},
journal = {Bulletin of the Institute of History and Philology},
number = {4},
pages = {623-765},
title = {The Tibetan Causative: Phonology},
volume = {42},
year = {1971}
}