(1971). Fourth five year plan1968-74: :summary. The Director, Publication Division, Ministry of information and broadcasting, Government of India.
Chicago Style (17th ed.) ZitazioaFourth Five Year Plan1968-74: :summary. New Delhi: The Director, Publication Division, Ministry of information and broadcasting, Government of India, 1971.
MLA (9th ed.) ZitazioaFourth Five Year Plan1968-74: :summary. The Director, Publication Division, Ministry of information and broadcasting, Government of India, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.