Akmajian, Adrian. Linguistics : An introduction to language and communication / Adrian Akmajian, Richard A. Demers, Ann K. Farmer, Robert M. Harnish. - 6th ed. - New Delhi : PHI Learning Pvt.Ltd., 2012. - xiv, 630 p. : ill. ; 25 cm. ISBN: 9788120344570 LCCN: 2003041990 Subjects--Topical Terms: Linguistics.