Bicol River Basin Development Program. (1977). Ten-year development plan, CY 1978-1987. The Program.
Citazione stile Chigago Style (17a edizione)Bicol River Basin Development Program. Ten-year Development Plan, CY 1978-1987. Camarines Sur: The Program, 1977.
Citatione MLA (9a ed.)Bicol River Basin Development Program. Ten-year Development Plan, CY 1978-1987. The Program, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.