APA

Trask R., . (2000). The penguin dictionary of english grammar. : Penguin books.

Chicago

Trask R.L, . 2000. The penguin dictionary of english grammar. : Penguin books.

Harvard

Trask R., . (2000). The penguin dictionary of english grammar. : Penguin books.

MLA

Trask R.L, . The penguin dictionary of english grammar. : Penguin books. 2000.