Analysis of information sources in references of the Wikipedia article "Printed circuit board" in English language version.
Last modified:
{{cite web}}: Check date values in: |access-date= and |date= (help)CS1 maint: url-status (link){{cite journal}}: Cite journal requires |journal= (help)CS1 maint: periodical has ISBN (link){{cite web}}: Check date values in: |access-date= and |date= (help){{cite journal}}: Cite journal requires |journal= (help)CS1 maint: periodical has ISBN (link)