Philippine (Commonwealth) Bureau of the Census and Statistics. (1976). Handbook of Philippine statistics [microform]. Photoduplication Service, University of the Phil ppines Library.
Chicago-viite (17. p.)Philippine (Commonwealth) Bureau of the Census and Statistics. Handbook of Philippine Statistics [microform]. Quezon City: Photoduplication Service, University of the Phil ppines Library, 1976.
MLA-viite (9. p.)Philippine (Commonwealth) Bureau of the Census and Statistics. Handbook of Philippine Statistics [microform]. Photoduplication Service, University of the Phil ppines Library, 1976.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.