Keates, J. S. (1989). Cartographic design and production (2nd ed.). Harlow, Essex, England : New York: Longman Scientific & Technical ; Wiley.
Παραπομπή Chicago StyleKeates, J. S. Cartographic Design and Production. 2nd ed. Harlow, Essex, England : New York: Longman Scientific & Technical ; Wiley, 1989.
Παραπομπή MLAKeates, J. S. Cartographic Design and Production. 2nd ed. Harlow, Essex, England : New York: Longman Scientific & Technical ; Wiley, 1989.
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