William Shakespeare (2013). “The Wars of the Roses In Plain and Simple English: Includes Henry VI Parts 1 - 3 & Richard III, Richard II, Henry IV Parts 1 and 2, and Henry V”, p.786, BookCaps Study Guides
Woodrow Wilson (1916). “Wit and Wisdom of Woodrow Wilson: Extracts from the Public Speeches of the Leader and Interpreter of American Democracy, with Masterpieces of Eloquence”, Best Books
John Muir (2015). “STEEP TRAILS: California - Utah - Nevada - Washington - Oregon - The Grand Canyon: Adventure Memoirs, Travel Sketches, Nature Essays and Wilderness Studies from the author of The Yosemite, Our National Parks, A Thousand-mile Walk to the Gulf & Picturesque California”, p.15, e-artnow