Lupfer, Gilbert Walter Gropius,1883-1969: the primer / Gilbert Lupfer, Paul Sigel - Koln : Taschen , 2004. - 96 p.: ill. 24 cm. ISBN: 9783822835319 Subjects--Topical Terms: Gropius, Walter,1883-1969.Architecture----Germany----20th century. LC Class. No.: NA1088 / .L84 2004