APA (7th ed.) Zitazioa

Helman, P. (1994). The science of database management. IRWIN.

Chicago Style (17th ed.) Zitazioa

Helman, Paul. The Science of Database Management. Illinois: IRWIN, 1994.

MLA (9th ed.) Zitazioa

Helman, Paul. The Science of Database Management. IRWIN, 1994.