Citazione Stile APA (7a Edizione)

(1991). Feasibility study for Kabulnan irrigation and area development project. National Irrigation Administration.

Citazione stile Chigago Style (17a edizione)

Feasibility Study for Kabulnan Irrigation and Area Development Project. Philippines: National Irrigation Administration, 1991.

Citatione MLA (9a ed.)

Feasibility Study for Kabulnan Irrigation and Area Development Project. National Irrigation Administration, 1991.