Maier, H. W. (1966). Challenge to the cities: An approach to a theory of urban leadership. New York: Random House.
Παραπομπή Chicago StyleMaier, Henry W. Challenge to the Cities: An Approach to a Theory of Urban Leadership. New York: Random House, 1966.
Παραπομπή MLAMaier, Henry W. Challenge to the Cities: An Approach to a Theory of Urban Leadership. New York: Random House, 1966.
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