APA

Allen H. B., . (1965). Teaching English as a second language. New York: McGraw-Hill Book Co.

Chicago

Allen H B, . 1965. Teaching English as a second language. New York: McGraw-Hill Book Co.

Harvard

Allen H. B., . (1965). Teaching English as a second language. New York: McGraw-Hill Book Co.

MLA

Allen H B, . Teaching English as a second language. New York: McGraw-Hill Book Co. 1965.