Frederiksen, J. (1980). The human side of information processing: Proceedings of the Copenhagen conference on computer impact-78. October 25-27, 1978. North-Holland Publishing.
Citácia podle Chicago (17th ed.)Frederiksen, Johannes. The Human Side of Information Processing: Proceedings of the Copenhagen Conference on Computer Impact-78. October 25-27, 1978. Amsterdam: North-Holland Publishing, 1980.
Citácia podľa MLA (8th ed.)Frederiksen, Johannes. The Human Side of Information Processing: Proceedings of the Copenhagen Conference on Computer Impact-78. October 25-27, 1978. North-Holland Publishing, 1980.
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