Seminar on Resource Base and Problems of Regional Development of North-Eastern Region of India Shillong, India, & North Eastern Hill University. (1977). Seminar on resource base and problems of regional development of North-Eastern region of India, 1977: Papers. Dept. of Geography, School of Environmental Sciences, North Eastern Hill University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Seminar on Resource Base and Problems of Regional Development of North-Eastern Region of India Shillong, India, و North Eastern Hill University. Seminar on Resource Base and Problems of Regional Development of North-Eastern Region of India, 1977: Papers. Shillong: Dept. of Geography, School of Environmental Sciences, North Eastern Hill University, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Seminar on Resource Base and Problems of Regional Development of North-Eastern Region of India Shillong, India, و North Eastern Hill University. Seminar on Resource Base and Problems of Regional Development of North-Eastern Region of India, 1977: Papers. Dept. of Geography, School of Environmental Sciences, North Eastern Hill University, 1977.