APA (7th ed.) Zitazioa
Agarwal, M. M. (1997). Railway Engineering. Standard Publishers.
Chicago Style (17th ed.) Zitazioa
Agarwal, M. M. Railway Engineering. Delhi: Standard Publishers, 1997.
MLA (9th ed.) Zitazioa
Agarwal, M. M. Railway Engineering. Standard Publishers, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.