Analysis of information sources in references of the Wikipedia article "Pollution" in English language version.
{{cite book}}: |journal= ignored (help){{cite journal}}: CS1 maint: multiple names: authors list (link){{cite journal}}: CS1 maint: multiple names: authors list (link){{cite journal}}: Cite journal requires |journal= (help){{cite web}}: CS1 maint: bot: original URL status unknown (link)Dr A. Shadwell (Industrial Efficiency, London, 1906) describes it as representing "the most complete application of science.... "