Alfred S. Bradford: , Praeger Publishers, 2000, ISBN 0-275-95259-2. Tao Hanzhang, Robert Wilkinson: , Wordsworth Editions, 1998 ISBN 978-1-85326-779-6. Mark R. McNeilly: , Oxford University Press, 2001 ISBN 0-19-513340-4. Ralph D. Sawyer: , Westview Press, 1994 ISBN 0-8133-1951-X. Ralph D. Sawyer: , Basic Books, 2005 ISBN 0-465-07204-6. Ralph D. Sawyer: , Basic Books, 2007 ISBN 0-465-00304-4.