Geometric Puzzle Design

AN EASY COURSE IN PROGRAMMING THE HP-11C AND HP-15C By Ted Wadman & Chris Coffin

The Geometric Design of Modern Highways by John Hugh Jones, 1961 E. & F. N. Spon

Asce Press Ser.: Geometric Design Projects for Highways : An Introduction by...

Easy Course in Using and Programming the Hp 48G/Gx - Paperback By Coffin - GOOD

Once to Every Man: A Memoir - Hardcover, by Coffin William Sloane - Very Good b

Elements of Conic Sections and Analytical Geometry, James Coffin 1881 HC VTG

An Easy Course in Using the - Unknown Binding, by Chris Coffin - Very Good