Robert Silverberg - The Second Trip - 1972 Gollancz SF hardback - 1st ed. RARE

The Stochastic Man by Robert Silverberg - Harper & Row Hardcover First

Lord Valentine's Castle by Robert Silverberg (1980 Hardback)

Lord of Darkness_Robert Silverberg_HCDJ_1983_UK 1st Edition_Gollancz_Very Good

Sunrise on Mercury by Robert Silverberg 1983 Hardcover Gollancz SF 1st Edition

The Stochastic Man By Robert Silverberg Fawcett 1976 PB 1st Printing Sci Fi

The Stochastic Man (1976), Robert Silverberg PB Good 9780449135709 Vintage SciFi

Robert Silverberg - Lord Valentine's Castle - 1st ED. HARDBACK