Denis Mack Smith:
New Haven and London, 1994
Donald Drew Egbert:
Social Radicalism and the Arts. Western Europe. A Cultural History from the French Revolution to 1968.
New York 1970
The Land Monopoly; The Suffering and Demoralization caused by It, and the Justice & Expediency of its Abolition
George Julian Harney ed.:
The Red Republican & The Friend of the People 1850-1851.