The Oxford Handbook of Qualitative Research
Patricia Leavy
Gregory of Nazianzus
Gregorio Nacianceno (santo) & Saint Gregory (of Nazianzus) & Brian Daley
Essentials of Mathematical Methods in Science and Engineering
Selçuk Ş. Bayın
MI6: The History of the Secret Intelligence Service 1909-1949
Keith Jeffery
The Revolution in Education
Mortimer Jerome Adler & Milton Mayer
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