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.
芝加哥风格引文University of Sheffield. Centre for Research on User Studies 与 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.
MLA引文University of Sheffield. Centre for Research on User Studies 与 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.
警告：这些引文格式不一定是100％准确.