توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

University of Sheffield. Centre for Research on User Studies و 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.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

University of Sheffield. Centre for Research on User Studies و 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.