Senguttuvan, P. (2007). Principles of airport economics. Excel books.
Chicago Style aipamenaSenguttuvan, P.S. Principles of Airport Economics. New Delhi: Excel books, 2007.
MLA aipamenaSenguttuvan, P.S. Principles of Airport Economics. Excel books, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.