Exhibition catalogue published in conjunction with show held September 13 - October 11, 1967. Essay by Steven S. Prokopoff. Artists in the exhibition include Carl Andre, Peter Gourfain, Ralph Humphrey, Robert Mangold, Brice Marden, Agnes Martin, Paul Mogensen, David Novros, Robert Ryman, and Richard van Buren. Includes checklist. Printed in black-and-white.