God's Battalions
Rodney Stark
2000 Years of Christ's Power Vol. 4: The Age of Religious Conflict
Nick R. Needham
International Encyclopedia of the Social Sciences
William A. Darity
The Prince of Mathematics: Carl Friedrich Gauss
M. B. W. Tent
The Modern Age: From Victoria's Empire to the End of the USSR
Susan Wise Bauer
The Story of the World (4)
The British National Bibliography
Arthur James Wells