Hassan, Irene U., Seymour A. Ashley & Mary L. Ashley. 1994. Tausug-English dictionary: Kabtangan Iban Maana. Manila: Summer Institute of Linguistics.
@book{hassanashleyandashley1994,
address = {Manila},
author = {Hassan, Irene U. and Ashley, Seymour A. and Ashley, Mary L.},
key = {Hassan, Ashley and Ashley 1994},
publisher = {Summer Institute of Linguistics},
title = {Tausug-English dictionary: Kabtangan Iban Maana},
year = {1994}
}