Macmillan Student's Dictionary
Martin H. Manser
A Dictionary of Slang and Unconventional English: Colloquialisms ...
Eric Partridge
Prester John: The Legend and Its Sources
Keagan Brewer
A University Grammar of English
Randolph Quirk & Sidney Greenbaum
How Not to Be Wrong: The Power of Mathematical Thinking
Jordan Ellenberg
Key Bible Concepts
David W. Gooding & John Carson Lennox