Philippines (Republic) Industrial Development Center. (1962). Report on the economic surveys of Camarines Sur. IDC.
Chicago-viite (17. p.)Philippines (Republic) Industrial Development Center. Report on the Economic Surveys of Camarines Sur. Manila: IDC, 1962.
MLA-viite (9. p.)Philippines (Republic) Industrial Development Center. Report on the Economic Surveys of Camarines Sur. IDC, 1962.
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