Salvatore The Woods Out Back 90926 SF Frank Herbert The Worlds of Frank Herbert (1971) 90951 SF Philip K. Dick The World Jones Made (1975) 90955 SF Jack Vance The World of Jack Vance 91010 SF Gregory Frost Lyrec (1984) 91052 SF John Carr (ed.) The Worlds of H. Beam Piper 91055 SF Poul Anderson The Worlds of Poul Anderson 91060 SF Theodore Sturgeon The Worlds of Theodore Sturgeon 91170 SF Marion Zimmer Bradley The World Wreckers 91352 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, 1969 91353 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, First Series 91354 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, Second Series 91355 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, Third Series 91356 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, Fourth Series 91357 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, 1970 91358 SF Donald A. Wollheim and Terry Carr (eds.) World's Best Science Fiction, 1971 91359 SF Fredrick Pohl Best Sf For 1972 91502 SF Robert A. Heinlein The Worlds of Robert A. Heinlein (1973) 91581 SF Keith Laumer Worlds of the Imperium 91640 SF Fritz Leiber The Worlds of Fritz Leiber 91706 SF Poul Anderson World Without Stars 91770 SF Robert E. Howard Worms of the Earth 92551 SF Andre Norton The X Factor 92553 SF Andre Norton The X Factor 93900 SF Ross Rocklynne The Sun Destroyers / Edmond Hamilton A Yank at Valhalla (March 1973) 94200 SF Wilson Tucker The Year of the Quiet Sun (1970) 94251 SF Andre Norton Year of the Unicorn 94254 SF Andre Norton Year of the Unicorn (1979) 95490 SF Andre Norton Zarsthor's Bane (November 1978) 95491 SF Andre Norton Zarsthor's Bane (1981 & 1983) 95492 SF Andre Norton Zarsthor's Bane (January 1984) 95493 SF Andre Norton Zarsthor's Bane (August 1986) 95501 NA Arch Whitehouse The Zeppelin Fighters 95941 SF Andre Norton Zarsthor's Bane 95960 SF Andre Norton The Zero Stone 95961 SF Andre Norton The Zero Stone 95964 SF Andre Norton The Zero Stone (1981) Numeric series, titles in