Jespersen, Otto, 1860-1943. How to teach a foreign language / by Otto Jespersen ... Tr. from the Danish original by Sophia Yhlen-Olsen Bertelsen. - London : George Allen & Company Ltd., 1912. - 194 p. ; 19 cm. Subjects--Topical Terms: Languages, Modern--Study and teaching LC Class. No.: SPE 5722