Philippines. National Environmental Protection Council & Philippines. National Council on Integrated Area Development. (1980). Ecological profile of Pangasinan. NEPC.
Cita Chicago (17th ed.)Philippines. National Environmental Protection Council i Philippines. National Council on Integrated Area Development. Ecological Profile of Pangasinan. Quezon City: NEPC, 1980.
Cita MLA (9th ed.)Philippines. National Environmental Protection Council i Philippines. National Council on Integrated Area Development. Ecological Profile of Pangasinan. NEPC, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.