APA

Worsdall V., . (1981). Special english for tourism: Charters, tours and the package deal. New York: Macmillan Internacional.

Chicago

Worsdall Vivien, . 1981. Special english for tourism: Charters, tours and the package deal. New York: Macmillan Internacional.

Harvard

Worsdall V., . (1981). Special english for tourism: Charters, tours and the package deal. New York: Macmillan Internacional.

MLA

Worsdall Vivien, . Special english for tourism: Charters, tours and the package deal. New York: Macmillan Internacional. 1981.