APA

Farrell M., Rossi F. & Ceriani R. (2000). The World of English. : Longman.

Chicago

Farrell M, Rossi F and Ceriani R. 2000. The World of English. : Longman.

Harvard

Farrell M., Rossi F. and Ceriani R. (2000). The World of English. : Longman.

MLA

Farrell M, Rossi F and Ceriani R. The World of English. : Longman. 2000.