APA-viite

Campbell, D. (1995). Designand operation of small holder irrigation in south asia. World bank.

Chicago-tyylinen lähdeviittaus

Campbell, Donald. Designand Operation of Small Holder Irrigation in South Asia. U S A: World bank, 1995.

MLA-viite

Campbell, Donald. Designand Operation of Small Holder Irrigation in South Asia. World bank, 1995.