Philippines (Republic). Program Implementation Agency. (1965). The Philippine economic atlas. The Agency.
Chicago-viite (17. p.)Philippines (Republic). Program Implementation Agency. The Philippine Economic Atlas. [Manila: The Agency, 1965.
MLA-viite (9. p.)Philippines (Republic). Program Implementation Agency. The Philippine Economic Atlas. The Agency, 1965.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.