Decalo, Samuel, Historical dictionary of Niger /by Samuel Decalo. - third edition. - Lanham, Maryland : Scarecrow Press, (c)1997. - xxxi, 486 pages : maps ; 23 cm. LCCN: 95052222 Subjects--Topical Terms: Guizotia abyssinica--History--Dictionaries. LC Class. No.: DT547 / .H578 1997 DT547