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शिकागो स्टाइल उद्धरणSoil Biology: Effects On Soil Quality. Boca Raton-USA: Lewis Publishers, 1994.
एमएलए उद्धरणSoil Biology: Effects On Soil Quality. Boca Raton-USA: Lewis Publishers, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.