Europe in the High Middle Ages
William Chester Jordan
An Old English Grammar 2nd ed.
Randolph Quirk & C. L. Wrenn
International Encyclopedia of Political Science
Bertrand Badie & Dirk Berg-Schlosser & Leonardo Morlino
Mining of Massive Datasets
Jure Leskovec & Anand Rajaraman & Jeffrey David Ullman
The Good Shepherd
Kenneth E. Bailey
Think Python: How to Think Like a Computer Scientist 2nd Edition
Allen B. Downey