Loxton, J. (1980). Practical map production. John Wiley.
Chicago Style (17th ed.) ZitazioaLoxton, John. Practical Map Production. New York: John Wiley, 1980.
MLA (9th ed.) ZitazioaLoxton, John. Practical Map Production. John Wiley, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.