apt Cheat Sheet
Opensource.com
Latin: A Linguistic Introduction
Renato Oniga
Augustine of Hippo: Philosopher, Exegete, and Theologian : A ...
Roland J. Teske
Boehme: An Intellectual Biography of the Seventeenth-Century ...
Andrew Weeks
The Syntax of the Celtic Languages: A Comparative Perspective
Robert D. Borsley & Ian Roberts
The Code Book
Simon Singh