Council for Social Development (India) & North Eastern Hill University. Centre for Continuing Education. (1977). Report of a needs assessment survey of select groups in Shillong for programme development. North-Eastern Hill University, Centre for Continuing Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Council for Social Development (India) و North Eastern Hill University. Centre for Continuing Education. Report of a Needs Assessment Survey of Select Groups in Shillong for Programme Development. [Shillong]: North-Eastern Hill University, Centre for Continuing Education, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Council for Social Development (India) و North Eastern Hill University. Centre for Continuing Education. Report of a Needs Assessment Survey of Select Groups in Shillong for Programme Development. North-Eastern Hill University, Centre for Continuing Education, 1977.