Παραπομπή APA

Hannah, L., & Kay, J. A. (1977). Concentration in modern industry: Theory, measurement, and the U.K. experience. London: Macmillan.

Παραπομπή Chicago Style

Hannah, Leslie., and John Anderson Kay. Concentration in Modern Industry: Theory, Measurement, and the U.K. Experience. London: Macmillan, 1977.

Παραπομπή MLA

Hannah, Leslie., and John Anderson Kay. Concentration in Modern Industry: Theory, Measurement, and the U.K. Experience. London: Macmillan, 1977.

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