Παραπομπή σε μορφή APA (7η εκδ.)

Langford, K. J., & Forster, C. (1999). Toward a financially sustainable irrigation system: Lessons from the state of Victoria, Australia, 1984-1994. World Bank.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Langford, K. John, και Christine Forster. Toward a Financially Sustainable Irrigation System: Lessons from the State of Victoria, Australia, 1984-1994. Washington, D.C: World Bank, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Langford, K. John, και Christine Forster. Toward a Financially Sustainable Irrigation System: Lessons from the State of Victoria, Australia, 1984-1994. World Bank, 1999.