Yorkey Richard C. English for international communication, 4 [Book /] Richard C. Yorkey ... [et al.]. - New York : American Book Company, c1978. - 152 p. : col. ill. ; 27cm. Cover title: InterCom. All age. ISBN: 0278499317 Subjects--Topical Terms: English language--Textbooks for foreign speakers. Dewey Class. No.: 428.24