University of Sheffield. Centre for Research on User Studies & Ford, G. (1978). Report of the director: For the period 1st November 1975-28th February 1978. University of Sheffield, Centre for Research on User Studies.
Citace podle Chicago (17th ed.)University of Sheffield. Centre for Research on User Studies a Geoffrey Ford. Report of the Director: For the Period 1st November 1975-28th February 1978. Sheffield: University of Sheffield, Centre for Research on User Studies, 1978.
Citace podle MLA (8th ed.)University of Sheffield. Centre for Research on User Studies a Geoffrey Ford. Report of the Director: For the Period 1st November 1975-28th February 1978. University of Sheffield, Centre for Research on User Studies, 1978.
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