Newmark, Maxim. Twentieth century modern language teaching sources and readings. With an introd. by Nicholas Murray Butler. - New York Philosophical Library [1948] - xxii, 723 p. 24 cm. LCCN: 48006763 Subjects--Topical Terms: Languages, Modern--Study and teaching. LC Class. No.: PB51 / .N4 Dewey Class. No.: 407