Philippines (Republic). National Land Reform Council. Circulars. [s.n.
Citazione stile Chigago Style (17a edizione)Philippines (Republic). National Land Reform Council. Circulars. Quezon City: [s.n.
Citatione MLA (9a ed.)Philippines (Republic). National Land Reform Council. Circulars. [s.n.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.