APA
North East Frontier Agency. Planning and Development Department (Shillong), . (1971). Annual operating plan, 1971-1972. Shillong: The Author.
Chicago
North East Frontier Agency. Planning and Development Department (Shillong), . 1971. Annual operating plan, 1971-1972. Shillong: The Author.
Harvard
North East Frontier Agency. Planning and Development Department (Shillong), . (1971). Annual operating plan, 1971-1972. Shillong: The Author.
MLA
North East Frontier Agency. Planning and Development Department (Shillong), . Annual operating plan, 1971-1972. Shillong: The Author. 1971.