Singh, P. (1985). Enivronmental pollution and management. Chugh.
Chicagoスタイル(17版)引用形式Singh, Pramod. Enivronmental Pollution and Management. Allahabad: Chugh, 1985.
MLA(9版)引用形式Singh, Pramod. Enivronmental Pollution and Management. Chugh, 1985.
警告: この引用は必ずしも正確ではありません.