Loxton, J. (1980). Practical map production. John Wiley.
Cita Chicago (17th ed.)Loxton, John. Practical Map Production. New York: John Wiley, 1980.
Cita MLA (9th ed.)Loxton, John. Practical Map Production. John Wiley, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.