(1994). Economy and ecology in sustainable development. Gramedia Pustaka Utama.
Chicagoスタイル(17版)引用形式Economy and Ecology in Sustainable Development. Jakarta: Gramedia Pustaka Utama, 1994.
MLA(9版)引用形式Economy and Ecology in Sustainable Development. Gramedia Pustaka Utama, 1994.
警告: この引用は必ずしも正確ではありません.