Cita APA

(1972). Area of influences: Road network of the Bicol region. [s.n.].

Citación estilo Chicago

Area of Influences: Road Network of the Bicol Region. [Manila]: [s.n.], 1972.

Cita MLA

Area of Influences: Road Network of the Bicol Region. [s.n.], 1972.

Warning: These citations may not always be 100% accurate.