Analysis of information sources in references of the Wikipedia article "List of pipeline accidents in the United States in 2012" in English language version.
{{cite web}}: CS1 maint: bot: original URL status unknown (link){{cite web}}: CS1 maint: bot: original URL status unknown (link){{cite web}}: CS1 maint: bot: original URL status unknown (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: multiple names: authors list (link){{cite web}}: CS1 maint: multiple names: authors list (link){{cite web}}: |last= has generic name (help){{cite web}}: |last= has generic name (help){{cite news}}: |first= has generic name (help){{cite web}}: |first= has generic name (help){{cite web}}: CS1 maint: numeric names: authors list (link){{cite web}}: |last1= has generic name (help){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link){{cite web}}: CS1 maint: archived copy as title (link)