Philippines. National Irrigation Administration. (1978). Project status report: Allah River Irrigation Project (loan no. 341 PHI). NIA.
Cita Chicago (17th ed.)Philippines. National Irrigation Administration. Project Status Report: Allah River Irrigation Project (loan No. 341 PHI). Quezon City: NIA, 1978.
Cita MLA (9th ed.)Philippines. National Irrigation Administration. Project Status Report: Allah River Irrigation Project (loan No. 341 PHI). NIA, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.