Citazione Stile APA (7a Edizione)

Physical Planning Strategy for the Philippines. (1973). Population and employment. s.n.].

Citazione stile Chigago Style (17a edizione)

Physical Planning Strategy for the Philippines. Population and Employment. [Manila: s.n.], 1973.

Citatione MLA (9a ed.)

Physical Planning Strategy for the Philippines. Population and Employment. s.n.], 1973.