Five-year development plan, 1983-1987.

Bibliográfalaš dieđut
Searvvušdahkki:	Bicol River Basin Development Program
Materiálatiipa:	Girji
Giella:	eaŋgalasgiella
Almmustuhtton:	Camarines Sur The Program 1982.
Fáttát:	Bicol River Basin Development Program > Development Plan.