Joseph Addison, Henry George Bohn, Richard Hurd (1856). “The Works of the Right Honourable Joseph Addison: Poems on several occasions. Poemata. Dialogues upon the usefulness of ancient medals, especially in relation to the Latin and Greek poets. Remarks on several parts of Italy, in the years 1701, 1702, 1703”, p.187
"Angela Davis: 'There is an unbroken line of police violence in the US that takes us all the way back to the days of slavery" by Stuart Jeffries, www.theguardian.com. December 14, 2014.