Não informado. (2004). Ethnological survey publications, Phillipine Islands. Bureau of Printing.
Chicago-viite (17. p.)Não informado. Ethnological Survey Publications, Phillipine Islands. Manila: Bureau of Printing, 2004.
MLA-viite (8. p.)Não informado. Ethnological Survey Publications, Phillipine Islands. Bureau of Printing, 2004.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.