(1992). Environmental problems: Prospects and constraints. Anmol Pub.
Chicagoスタイル(17版)引用形式Environmental Problems: Prospects and Constraints. New Delhi: Anmol Pub, 1992.
MLA(9版)引用形式Environmental Problems: Prospects and Constraints. Anmol Pub, 1992.
警告: この引用は必ずしも正確ではありません.