(1972). Development and environment. United Nations.
Chicagoスタイル(17版)引用形式Development and Environment. Geneva: United Nations, 1972.
MLA(9版)引用形式Development and Environment. United Nations, 1972.
警告: この引用は必ずしも正確ではありません.
(1972). Development and environment. United Nations.
Chicagoスタイル(17版)引用形式Development and Environment. Geneva: United Nations, 1972.
MLA(9版)引用形式Development and Environment. United Nations, 1972.