Rules of Thumb: A Guide for Writers, Seventh Edition by Jay Silverman, Elaine Hughes and Diana Roberts Wienbroer English | 2006 | ISBN: 007353319X | 224 pages | PDF | 2 MB
Richard A. Mann, Barry S. Roberts, "Essentials of Business Law and the Legal Environment, 12th Edition" 2015 | ISBN-10: 1305075439 | 1152 pages | PDF | 19 MB