Waterman, Margaret P. 1932. A study of the Igorot Language as spoken by the Bontoc Igorots. Manila: Bureau of Printing.
@book{bonmannsymmetrical-waterman1932igorot,
address = {Manila},
author = {Waterman, Margaret P.},
publisher = {Bureau of Printing},
title = {A study of the Igorot Language as spoken by the Bontoc Igorots},
year = {1932}
}