APA
A. J. Thomson & Others, . (2019). A Practical English Grammar. DELHI: Oxford.
Chicago
A. J. Thomson & Others, . 2019. A Practical English Grammar. DELHI: Oxford.
Harvard
A. J. Thomson & Others, . (2019). A Practical English Grammar. DELHI: Oxford.
MLA
A. J. Thomson & Others, . A Practical English Grammar. DELHI: Oxford. 2019.