APA

Thomson A., . (1997). A Practical English Grammar. Oxford: Oxford Univ. Press.

Chicago

Thomson A.J, . 1997. A Practical English Grammar. Oxford: Oxford Univ. Press.

Harvard

Thomson A., . (1997). A Practical English Grammar. Oxford: Oxford Univ. Press.

MLA

Thomson A.J, . A Practical English Grammar. Oxford: Oxford Univ. Press. 1997.