Ernesto Screpanti, Stefano Zamagni, "An Outline of the History of Economic Thought" Oxford University Press, USA | 2005-08-11 | ISBN: 0199279136 | 578 pages | PDF | 2,3 MB
John Stillwell - The Real Numbers: An Introduction to Set Theory and Analysis Published: 2013-10-16 | ISBN: 3319015761, 3319015788 | PDF | 244 pages | 2.44 MB
Abstract Sets and Finite Ordinals: An Introduction to the Study of Set Theory (Dover Books on Mathematics) by G. B. Keene 2007 | ISBN: 0486462498 | English | 112 pages | EPUB | 6 MB