Singh, K. (1988). Humanity at the crossroads.
シカゴスタイル引用形Singh, Karen. Humanity at the Crossroads. 1988.
MLA引用形式Singh, Karen. Humanity at the Crossroads. 1988.
警告: この引用は必ずしも正確ではありません.
Singh, K. (1988). Humanity at the crossroads.
シカゴスタイル引用形Singh, Karen. Humanity at the Crossroads. 1988.
MLA引用形式Singh, Karen. Humanity at the Crossroads. 1988.