Philippines (Republic). National Economic Council. (1967). Economic survey of the province of Bulacan. [s.n.].
Style de citation Chicago (17e éd.)Philippines (Republic). National Economic Council. Economic Survey of the Province of Bulacan. Manila: [s.n.], 1967.
Style de citation MLA (9e éd.)Philippines (Republic). National Economic Council. Economic Survey of the Province of Bulacan. [s.n.], 1967.
Attention : ces citations peuvent ne pas être correctes à 100%.