Rowlands, E. C. Teach yourself Yoruba [by] E. C. Rowlands. - London, English Universities P., 1969. - vi, 276 p. 18 cm. - The Teach yourself books . ISBN: 0340059958 LCCN: 70416819 Nat. Bib. No.: B69-10054 Subjects--Topical Terms: Yoruba language--Grammar. LC Class. No.: PL8822 / .R6 Dewey Class. No.: 496.333