The Oxford Dictionary of Quotations
Tony Augarde
The Adventure of the Copper Beeches
Arthur Conan Doyle
The Adventures of Sherlock Holmes (12)
The Cambridge Handbook of Thinking and Reasoning
Keith J. Holyoak & Robert G. Morrison
Logic, Methodology and Philosophy of Science
Ernest Nagel & Patrick Suppes & Alfred Tarski
Junge rettet Freund aus Teich
Heinz Strunk
The Secret of Light
Walter Russell