Citace podle APA (7th ed.)

Ems, E. (1988). Economics of public information systems. Dept. of Economics, University of Stockholm.

Citace podle Chicago (17th ed.)

Ems, Emil. Economics of Public Information Systems. Stockholm: Dept. of Economics, University of Stockholm, 1988.

Citace podle MLA (8th ed.)

Ems, Emil. Economics of Public Information Systems. Dept. of Economics, University of Stockholm, 1988.

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