Heath, Jeffrey. Ablaut and ambiguity : phonology of a Moroccan Arabic dialect / Jeffrey Heath. - Albany : State University of New York Press, c1987. - xii, 366 p. ; 24 cm. - SUNY series in linguistics . Includes indexes. Bibliography : p. 353-355. ISBN: 0887065112 0887065120 (pbk.) LCCN: 86-030050 Subjects--Topical Terms: Arabic language--Dialects--Morocco.Arabic language--Dialects--Phonology.Arabic language--Vowel gradation.