System identification (Mathematics in Science and Engineering, Vol. 80) By Sage, Andrew Books / Hardcover Books ISBN: 0126144508 / Publisher: Academic Press, February 1971 Price Starting at $23.11 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. Volume 80. (science, math, engineering) A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. $23.11 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for System identification (Mathematics in Science and Engineering, Vol. 80)