Bicol River Basic Council. (1975). Project feasibility study of Libmanan: Cabusao integrated development. The Council.
Čikaški stil citiranja (17. izdanje)Bicol River Basic Council. Project Feasibility Study of Libmanan: Cabusao Integrated Development. Camarines Sur: The Council, 1975.
MLA način citiranja (9. izdanje)Bicol River Basic Council. Project Feasibility Study of Libmanan: Cabusao Integrated Development. The Council, 1975.
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