Perlas, N. (1998). Philippine agenda 21 handbook. Center for Alternative Development Initiatives].
Chicagoスタイル(17版)引用形式Perlas, Nicanor. Philippine Agenda 21 Handbook. [Quezon City, Philippines: Center for Alternative Development Initiatives], 1998.
MLA(9版)引用形式Perlas, Nicanor. Philippine Agenda 21 Handbook. Center for Alternative Development Initiatives], 1998.
警告: この引用は必ずしも正確ではありません.