Popular Center Foundation & Population Center Foundation. (1980). Kinabukasan: Report of the Population Center. PCF.
Chicago-viite (17. p.)Popular Center Foundation ja Population Center Foundation. Kinabukasan: Report of the Population Center. Manila: PCF, 1980.
MLA-viite (9. p.)Popular Center Foundation ja Population Center Foundation. Kinabukasan: Report of the Population Center. PCF, 1980.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.