उर्वरक का इतिहास (Hindi Wikipedia)

Analysis of information sources in references of the Wikipedia article "उर्वरक का इतिहास" in Hindi language version.

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archive.org

Curtis, Harry A. (1924). "Fertilizers: The World Supply". Foreign Affairs. 2 (3): 436–445. डीओआई:10.2307/20028312. JSTOR 20028312.
Brand, Charles J. (1945). "Some Fertilizer History Connected with World War I". Agricultural History. 19 (2): 104–113. JSTOR 3739556.

books.google.com

Smil, Vaclav (2004). Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production. MIT Press. ISBN 9780262693134.

doi.org

Curtis, Harry A. (1924). "Fertilizers: The World Supply". Foreign Affairs. 2 (3): 436–445. डीओआई:10.2307/20028312. JSTOR 20028312.

jstor.org

Curtis, Harry A. (1924). "Fertilizers: The World Supply". Foreign Affairs. 2 (3): 436–445. डीओआई:10.2307/20028312. JSTOR 20028312.
Brand, Charles J. (1945). "Some Fertilizer History Connected with World War I". Agricultural History. 19 (2): 104–113. JSTOR 3739556.