Bicol River Basin Development Program. (1982). Five-year development plan, 1983-1987. The Program.
Chicago-viite (17. p.)Bicol River Basin Development Program. Five-year Development Plan, 1983-1987. Camarines Sur: The Program, 1982.
MLA-viite (9. p.)Bicol River Basin Development Program. Five-year Development Plan, 1983-1987. The Program, 1982.
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