Hayes, John L. 1946-, A manual of Sumerian grammar and texts /John L. Hayes. - Malibu, California : Undena Publications, (c)1990. - viii, 311 pages : illustrations ; 28 cm. LCCN: 89050971 Subjects--Topical Terms: Sumerian language--Grammar. LC Class. No.: PJ4013 / .M368 1990 PJ4013