APA

Hadfield C., Hadfiled j., . (1999). Oxford basics. : Cambridge University press.

Chicago

Hadfield Charles, Hadfiled jill, . 1999. Oxford basics. : Cambridge University press.

Harvard

Hadfield C., Hadfiled j., . (1999). Oxford basics. : Cambridge University press.

MLA

Hadfield Charles, Hadfiled jill, . Oxford basics. : Cambridge University press. 1999.