Encyclopedia Britannica - Philosophy of Science
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Who's Who in Non-Classical Mythology
Egerton Sykes & Edgerton Skyes & Alan Kendall
An Etymological Dictionary of Modern English
Ernest Weekley
A History of Mathematical Notation. Vol II
Florian Cajori
The Universal Mandelbrot Set: Beginning of the Story
V. Dolotin & A. Morozov
Gesammelte Werke Mark Twains
Mark Twain
Gesammelte Werke von Joachim Ringelnatz
Joachim Ringelnatz
Die große Sammlung der Werke Karl Mays: II
Karl May