Development Academy of the Philippines Human Settlements Program. (1977). Human settlements: Philippine frontier settlements models. Human Settlements Program.
Chicago-Zitierstil (17. Ausg.)Development Academy of the Philippines Human Settlements Program. Human Settlements: Philippine Frontier Settlements Models. Quezon City: Human Settlements Program, 1977.
MLA-Zitierstil (9. Ausg.)Development Academy of the Philippines Human Settlements Program. Human Settlements: Philippine Frontier Settlements Models. Human Settlements Program, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.