Ram Kumar. (2000). Environmental biodegradation (1st.). Sarup & Sons.
シカゴスタイル引用形Ram Kumar. Environmental Biodegradation. 1st. New Delhi: Sarup & Sons, 2000.
MLA引用形式Ram Kumar. Environmental Biodegradation. 1st. Sarup & Sons, 2000.
警告: この引用は必ずしも正確ではありません.