(1990). Natural resources for a sustainable future: Spreading the benefits. Thailand: [s.n.].
シカゴスタイル引用形Natural Resources for a Sustainable Future: Spreading the Benefits. Thailand: [s.n.], 1990.
MLA引用形式Natural Resources for a Sustainable Future: Spreading the Benefits. Thailand: [s.n.], 1990.
警告: この引用は必ずしも正確ではありません.