Hibbeler R.C. Mechanics of materials

8th edition. — Pearson Prentice Hall, 2011. — 885 p. — ISBN13: 978-0-13-602230-5.It is intended that this book provide the student with a clear and thorough presentation of the theory and application of the principles of mechanics of materials. To achieve this objective, over the years this work has been shaped by the comments and suggestions of hundreds of reviewers in the teaching profession, as well as many of the author’s students. The eighth edition has been significantly enhanced from the previous edition, and it is hoped that both the instructor and student will benefit greatly from these improvements.