Harry C. Mansfield
R. V. Young
Harvard Dictionary of Music
Willi Apel
Learning React, 2nd Edition
Eve Porcello & Alex Banks
Gnosticism: New Light on the Ancient Tradition of Inner Knowing
Stephan A. Hoeller
Gurdjieff entschlüsselt
John G. Bennett
The Inheritance of Rome: Illuminating the Dark Ages 400-1000
Chris Wickham
Penguin History of Europe (2)