Asawa, G. L. (1993). Irrigation Engineering. Wiley Eastern.
Chicago Style aipamenaAsawa, G. L. Irrigation Engineering. New Delhi: Wiley Eastern, 1993.
MLA aipamenaAsawa, G. L. Irrigation Engineering. Wiley Eastern, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.