Gupta, O. P. (2001). Weedy aquatic plants: Their utility, menance and management.
シカゴスタイル引用形Gupta, O P. Weedy Aquatic Plants: Their Utility, Menance and Management. Agrobios India, 2001.
MLA引用形式Gupta, O P. Weedy Aquatic Plants: Their Utility, Menance and Management. 2001.
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