Aufmann

Algebra and Trigonometry by Richard N. Aufmann,Richard D. Nation Brooks/Cole Hardcover 5 February 2014 from£64.62 | RRP: ~~£141~~
College Algebra & Trigonometry by Richard N. Aufmann,Vernon C. Barker,Richard C. Nation Houghton Mifflin (Academic) Textbook Binding 8 August 2002 from£37.73 | RRP: ~~£27.95~~