APA (7th ed.) Zitazioa
Khanna, M. (2002). Differential equations. Jaiprakash nath and co.
Chicago Style (17th ed.) Zitazioa
Khanna, M.L. Differential Equations. New Delhi: Jaiprakash nath and co, 2002.
MLA (9th ed.) Zitazioa
Khanna, M.L. Differential Equations. Jaiprakash nath and co, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.