Carl Friedrich Gauss’s textbook, Disquisitiones arithmeticae, published in 1801 (Latin), remains to this day a true masterpiece of mathematical examination. .
The book, Disquisitiones Arithmeticae (9780387962542) [Order Bulk Books, Wholesale, Quantity Discount] with ISBN# 9780387962542 in by may be ordered bulk quantities. Minimum orders start at copies.