Cita APA (7th ed.)

Norton, P. (2011). [Title not supplied]: Norton, Peter (7th ed.).

Cita Chicago (17th ed.)

Norton, Peter. [Title Not Supplied]: Norton, Peter. 7th ed. Tata McGraw Hill, 2011.

Cita MLA (9th ed.)

Norton, Peter. [Title Not Supplied]: Norton, Peter. 7th ed. 2011.