India planning commission. (1972). Fourth paln: Mid-term appraisal. Planning.
Chicago Style aipamenaIndia planning commission. Fourth Paln: Mid-term Appraisal. New Delhi: Planning, 1972.
MLA aipamenaIndia planning commission. Fourth Paln: Mid-term Appraisal. Planning, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.