Allen, Harold B. Teaching english as a second language ; a book a reading / Harold Allen B. Russell Campbell N - 2nd ed - New Delhi , Tata MacGraw Hill ; 1965 . - x , 449 p .: ill .: 23 cm . Includes index ; p. 443 - 449 1149 ISBN: 001099201 X Subjects--Personal Names: Dewey Class. No.: 428.07 / ALL