The Child's Conception of Movement and Speed
Jean Piaget
Immoderate Greatness: Why Civilizations Fail
William Ophuls
Fundamental Mathematical Structures of Quantum Theory: Spectral ...
Valter Moretti
The American Union and the Problem of Neighborhood: The United ...
James E. Lewis
Man Unfolding
Jonas Salk & Salk Jonas
Solving Problems in Mathematical Analysis, Part II
Tomasz Radożycki
Problem Books in Mathematics (2)
Solving Problems in Mathematical Analysis, Part I
Problem Books in Mathematics (1)
Problems on Partial Differential Equations
Maciej Borodzik & Paweł Goldstein & Piotr Rybka & Anna Zatorska-Goldstein