"Modernism and Music: An Anthology of Sources". Book editing by Daniel Albright (University of Chicago Press), essay "The Composer in the Machine Age" (1933), 2004.
Martin Luther (1931). “Early Protestant Educators: The Educational Writings of Martin Luther, John Calvin, and Other Leaders of Protestant Thought”, Ams PressInc
George R. R. Martin (2012). “George R. R. Martin's A Game of Thrones 5-Book Boxed Set (Song of Ice and Fire Series): A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, and and A Dance with Dragons”, p.1119, Bantam
"An Essay on the Aristocratic Radicalism of Friedrich Nietzsche". Essay by Georg Brandes (1889), as translated in "Friedrich Nietzsche" by A.G. Chater (p. 21), 1914.