APA (7th ed.) Zitazioa
Verma, A. (2007). Business Mathematics (3rd ed.). Asian books.
Chicago Style (17th ed.) Zitazioa
Verma, A.P. Business Mathematics. 3rd ed. New Delhi: Asian books, 2007.
MLA (9th ed.) Zitazioa
Verma, A.P. Business Mathematics. 3rd ed. Asian books, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.