SF Encyclopedia Picture Gallery
H Beam Piper. Four-Day Planet (New York: G P Putnam's Sons, 1961) [Terro-Human Future History: Federation: hb/Charles Geer]
Image courtesy of L W Currey, Inc
H Beam Piper. Four-Day Planet (New York: G P Putnam's Sons, 1961) [Terro-Human Future History: Federation: hb/Charles Geer]
Image courtesy of L W Currey, Inc