Pro Cryptography and Cryptanalysis
Stefania Loredana Nita & Marius Iulian Mihailescu
Philosophie Der Raum-Zeit-Lehre
Hans Reichenbach
Etymological Dictionary of Proto-Germanic
Guus Kroonen
God's Battalions
Rodney Stark
Complete Works of G. K. Chesterton (Delphi Classics)
Delphi Classics & G. K. Chesterton
Delphi Series Two (2)
History and Salvation in Medieval Ireland
Elizabeth Boyle