Philippines (Republic). National Economic Council. (1967). Economic survey report of the Bicol region, 1967. [s.n.].
芝加哥风格引文Philippines (Republic). National Economic Council. Economic Survey Report of the Bicol Region, 1967. Manila: [s.n.], 1967.
MLA引文Philippines (Republic). National Economic Council. Economic Survey Report of the Bicol Region, 1967. [s.n.], 1967.
警告：这些引文格式不一定是100％准确.