APA

Wood I., Pile L., . (2006). Pass Cambridge BEC Higher. Oxford: Summertown Publishing.

Chicago

Wood I, Pile L, . 2006. Pass Cambridge BEC Higher. Oxford: Summertown Publishing.

Harvard

Wood I., Pile L., . (2006). Pass Cambridge BEC Higher. Oxford: Summertown Publishing.

MLA

Wood I, Pile L, . Pass Cambridge BEC Higher. Oxford: Summertown Publishing. 2006.