Thinking Quotes - Page 259
P.J. O'Rourke (2012). “Holidays in Hell”, p.160, Atlantic Books Ltd
"Interview in Rome". Encountering Directors, (pp. 15-32), 1972.
Michael Horton (2008). “Christless Christianity: The Alternative Gospel of the American Church”, p.16, Baker Books
Masaaki Hatsumi (1988). “The Grandmaster's Book of Ninja Training”, McGraw-Hill Education