Somayajulu, V. V. N. (1991). Industrial poject planning and appraisal in input output frame work case studies of Indian industries. Himalaya Publishing House.
Trích dẫn kiểu ChicagoSomayajulu, V V N. Industrial Poject Planning and Appraisal in Input Output Frame Work Case Studies of Indian Industries. Bombay: Himalaya Publishing House, 1991.
Trích dẫn MLASomayajulu, V V N. Industrial Poject Planning and Appraisal in Input Output Frame Work Case Studies of Indian Industries. Himalaya Publishing House, 1991.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.