Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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