APA

THORNBURY S., . (1997). About Language: Tasks for teachers of English. : Cambridge University Press.

Chicago

THORNBURY Scott, . 1997. About Language: Tasks for teachers of English. : Cambridge University Press.

Harvard

THORNBURY S., . (1997). About Language: Tasks for teachers of English. : Cambridge University Press.

MLA

THORNBURY Scott, . About Language: Tasks for teachers of English. : Cambridge University Press. 1997.