Khanna, R. (2011). Project management. PHI learning.
Chicago Style (17th ed.) ZitazioaKhanna, R.B. Project Management. New Delhi: PHI learning, 2011.
MLA (9th ed.) ZitazioaKhanna, R.B. Project Management. PHI learning, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.