Merriam-Webster's Dictionary of Quotations
Merriam-Webster
Philosophy: Key Themes
Julian Baggini
A History of Mathematical Notation. Vol II
Florian Cajori
Key Concepts in Victorian Literature
Sean Purchase
Gesammelte Werke, Winnetou III by Karl May
Karl May
The Price of Freedom: Political Philosophy From Thoreau's Journals
Henry David Thoreau & David Gross