Trivedi, P. R. (2004). Natural resources conservation. APH Publishing.
シカゴスタイル引用形Trivedi, P. R. Natural Resources Conservation. New Delhi: APH Publishing, 2004.
MLA引用形式Trivedi, P. R. Natural Resources Conservation. APH Publishing, 2004.
警告: この引用は必ずしも正確ではありません.