Παραπομπή APA

Lowry, I. S. (1963). Economic study of the Pittsburgh region. Pittsburgh, PA: University of Pittsburgh Press.

Παραπομπή Chicago Style

Lowry, Ira S. Economic Study of the Pittsburgh Region. Pittsburgh, PA: University of Pittsburgh Press, 1963.

Παραπομπή MLA

Lowry, Ira S. Economic Study of the Pittsburgh Region. Pittsburgh, PA: University of Pittsburgh Press, 1963.

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