The purist image : Ralph Humphrey, Sol Lewitt, Dorothea Rockbourne, Joel Shapiro, Christopher Wilmarth, Jackie Winsor. - Marian Locks Gallery (Philadelphia : Marian Locks Gallery, 1986)
Catalog of an exhibition held November 1986 at Marian Locks Gallery.
Mode of access: Internet.
Keywords: Humphrey, Ralph -- Exhibitions; Art, American -- 20th century -- Exhibitions