Trigonometry (Lial/Hornsby/Schneider Series) By Margaret L. Lial, John S. Hornsby, David I. Schneider 2004 | 656 Pages | ISBN: 0321227360 | DJVU | 8 MB
Margaret L. Lial, John Hornsby, Terry McGinnis, "Algebra for College Students (7th Edition)" English | 2011 | ISBN: 0321715403 | 936 pages | PDF | 26 MB