A First Course in Differential Equations (undergraduate Texts in Mathematics)Logan · Undergraduate Texts in Mathematics2006PDF1.6 MB
An Introduction to Nonlinear Partial Differential Equations (pure and Applied Mathematics: A Wiley-interscience Series of Texts, Monographs and Tracts)Logan · Pure and applied mathematics (John Wiley & Sons : Unnumbered)2008PDF8.6 MB
The Middle Ages Through the Restoration and the Eighteenth CenturyStephen Greenblatt, M. H. Abrams & 7 more2006PDF37 MBEN