To Have and To Hold
Mary Johnston
Woman Her Sex and Love Life
William J. (William Josephus) Robinson
Calculus
Gilbert Strang & Edwin Prine Herman
Mathematics - Free of Worries at the University II
Christian Posthoff; Brand Steinbach
The Einstein Theory of Relativity
Hendrik Antoon Lorentz
An Inquiry Into the Nature and Causes of the Wealth of Nations
Adam Smith