Wendy Wren. (2005). Nelson Thornes Framework English (New edition.). Nelson Thornes Ltd.
Cita Chicago (17th ed.)Wendy Wren. Nelson Thornes Framework English. New edition. Nelson Thornes Ltd, 2005.
Cita MLA (9th ed.)Wendy Wren. Nelson Thornes Framework English. New edition. Nelson Thornes Ltd, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.