Proficiency in English through life in English speaking countries / National Council of Teachers of Englishedited by William R. Slager and Russel B. Nye - New York : McGraw-Hill, c1967. - xii, 154 p. ; ill. ; 24 cm. ISBN: 9780071135245 LCCN: Subjects--Topical Terms: English proficiency LC Class. No.: PE1128 / .A2P73 1967