APA (7th ed.) Zitazioa
Varshney R. S. (1977). Hydro power structure (2nd ed.). New Chand.
Chicago Style (17th ed.) Zitazioa
Varshney R. S. Hydro Power Structure. 2nd ed. New Delhi: New Chand, 1977.
MLA (9th ed.) Zitazioa
Varshney R. S. Hydro Power Structure. 2nd ed. New Chand, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.