APA (7e ed.) Bronvermelding

Physical Planning Strategy for the Philippines. (1973). Region III - Central Plain; regional capital - San Fernando, Pampanga. s.n.].

Chicago (17e ed.) Bronvermelding

Physical Planning Strategy for the Philippines. Region III - Central Plain; Regional Capital - San Fernando, Pampanga. [Manila: s.n.], 1973.

MLA (9e ed.) Bronvermelding

Physical Planning Strategy for the Philippines. Region III - Central Plain; Regional Capital - San Fernando, Pampanga. s.n.], 1973.