An Introduction to the Theory of Numbers, Ivan Niven,1967 2nd EditionThere is some wear to the cover. The book has wear on the corners. There may be some marks in or on the book. Books are stored in poly bags on a bookshelf in A C. They are in a dark room and are well maintained. They are also shipped in the poly bag, wrapped in bubble wrap, and put in a box. If you have any questions or concerns about this book please contact me. An Introduction to the Theory of Numbers, Ivan Niven,1967 2nd Edition There is some wear