Mellgren, Lars. New horizons in English / [electronic resource] / Lars Mellgren, Michael Walker ; consulting editor, John A. Upshur.. — Reading, Mass. : : Addison-Wesley Pub. Co.,, [197. — v. : : col. ill. ; 21 cm. ISBN: 0201044242 (v. 4) 9780201044249 (v. 4) LCCN: 75305504 Subjects--Topical Terms: English language--Textbooks for foreign speakers. LC Class. No.: PE1128 / .M38 Dewey Class. No.: 428/.2/4