Universe or Multiverse?
Bernard Carr
Qualitative representation of spatial knowledge
Daniel Hernández
Lecture notes in artificial intelligence (804)
Writings of Leon Trotsky (1932)
Leon Trotsky
Man, Economy, and State with Power and Market
Murray Newton Rothbard
Late Roman Warlords
Penny MacGeorge
How Children Learn: Educational Theories and Approaches - From ...
Linda Pound