Cita APA (7a ed.)
Barker, R., & Samad, M. (1998). Irrigation development and food security in Sri Lanka.
Cita Chicago Style (17a ed.)
Barker, Randolph, y M. Samad. Irrigation Development and Food Security in Sri Lanka. 1998.
Cita MLA (9a ed.)
Barker, Randolph, y M. Samad. Irrigation Development and Food Security in Sri Lanka. 1998.
Precaución: Estas citas no son 100% exactas.