Discrete Mathematics with Graph Theory
Edgar G. Goodaire & Michael M. Parmenter
Die Kraft der Mitfuehlenden Kommunikation
Mark Robert Waldman & Andrew B. Newberg
The Oxford Handbook of Work Engagement, Motivation, and Self-Determination ...
Marylène Gagné
The Romantic Manifesto
Ayn Rand
A Historical Dictionary of Psychiatry
Edward Shorter & Hannah Chair In The History Of Medicine & Professor Of Psychiatry Edward Shorter
Merriam-Webster's Dictionary of Quotations
Merriam-Webster