Cita APA (7th ed.)

Smith, D. (1989). North and south: Britain's economic, social and political divide (Second edition.). Penguin books.

Cita Chicago (17th ed.)

Smith, David. North and South: Britain's Economic, Social and Political Divide. Second edition. London ; New York: Penguin books, 1989.

Cita MLA (8th ed.)

Smith, David. North and South: Britain's Economic, Social and Political Divide. Second edition. Penguin books, 1989.