Analysis of information sources in references of the Wikipedia article "Pompeo Colonna" in English language version.
{{cite book}}
: CS1 maint: location missing publisher (link) Henry J. Cohn (1971). Government in Reformation Europe 1520–1560. London: Palgrave Macmillan UK. pp. 108–115. ISBN 978-1-349-01142-1.{{cite book}}
: CS1 maint: location missing publisher (link)