Conventional left–right political spectrum
Anonymus
Wetherly, Paul (2017). Political Ideologies. Oxford, United Kingdom: Oxford University Press. p. 250. <a href="//commons.wikimedia.org/wiki/Special:BookSources/9780198727859" title="Special:BookSources/9780198727859">ISBN 9780198727859</a>. OCLC 972801473