Hassan, Irene U. and Ashley, Seymour A. and Ashley, Mary L. 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} }