Philippines (Commonwealth) Commission of the Census & Philippines (Commonwealth) Commissiion of the Census. Census of the Philippines, 1939. (1976). Instructions to enumerators: Census of population and agriculture, Octber 3, 1938 [microform]. Photoduplication Service. University of the Philippines Library.
Cita Chicago (17th ed.)Philippines (Commonwealth) Commission of the Census i 1939 Philippines (Commonwealth) Commissiion of the Census. Census of the Philippines. Instructions to Enumerators: Census of Population and Agriculture, Octber 3, 1938 [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
Cita MLA (9th ed.)Philippines (Commonwealth) Commission of the Census i 1939 Philippines (Commonwealth) Commissiion of the Census. Census of the Philippines. Instructions to Enumerators: Census of Population and Agriculture, Octber 3, 1938 [microform]. Photoduplication Service. University of the Philippines Library, 1976.