Singh,Parmeshwar. (2013). Biodiversity based organic farming. centrum press.
Chicago Edition CitationSingh,Parmeshwar. Biodiversity Based Organic Farming. New Delhi: centrum press, 2013.
MLA Edition CitationSingh,Parmeshwar. Biodiversity Based Organic Farming. centrum press, 2013.
Warning: These citations may not always be 100% accurate.