APA

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

Chicago

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

Harvard

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

MLA

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