Jonsson, Nanna L. Proto Southwestern Tai [microform] / by Nanna L. Jonsson. - Ann Arbor, Mich. : University Microfilms International , 1991. - 5 microfiches ; 11 X 15 cm. Thesis (D.A)-State University of New York at Albany, 1991. Subjects--Topical Terms: Proto--Tai language.