Cita APA

(1972). Population and heirarchy of cities and municipalities: Bicol region. [s.n.].

Citación estilo Chicago

Population and Heirarchy of Cities and Municipalities: Bicol Region. [Manila]: [s.n.], 1972.

Cita MLA

Population and Heirarchy of Cities and Municipalities: Bicol Region. [s.n.], 1972.

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