Wilkens, E. B. (1948). Mapping for planning: A procedural guide for the classification and mapping of land uses and related technical studies. Chicago: Public Administration Service.
Παραπομπή Chicago StyleWilkens, E. B. Mapping for Planning: A Procedural Guide for the Classification and Mapping of Land Uses and Related Technical Studies. Chicago: Public Administration Service, 1948.
Παραπομπή MLAWilkens, E. B. Mapping for Planning: A Procedural Guide for the Classification and Mapping of Land Uses and Related Technical Studies. Chicago: Public Administration Service, 1948.
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