Ray, Sidney H. 1913. The languages of Borneo. The Sarawak Museum Journal 1.4. 1-196.
@article{ray1913,
author = {Ray, Sidney H.},
journal = {The Sarawak Museum Journal},
key = {Ray 1913},
pages = {1-196},
title = {The languages of Borneo},
volume = {1.4},
year = {1913}
}