Nightstand Books, 1961. Softcover. PBO. #1555. Fine.

New York: Avon Camelot, 1970. Bode, Vaughn (cover). 1st edition thus. Softcover. ZS166, mass market paperback. Cover art by Vaughn Bode and Basil Gogo, interior art by Edd Cartier. Fine with white pages, no previous owner's marks.

New York: Airmont, 1965. Krenkel, Roy G. Softcover. 1st ptg this edition, mass market paperback with full cover color and 7 full page line drawings by Roy Krenkel. Introduction by Donald Wollheim. CL69. Lightly tanned pages, a bit of toning to spine else a fine bright copy.

Nightstand Books, 1961. Softcover. PBO. #1545. Fine.

New York: DAW, 1975. Krenkel, Roy. Softcover. 1st ptg. #138. Cover art and illustrations by Roy Krenkel. Fourth novel in the Green Star saga. Fine.

Chicago: Newsstand Library, 1949. Softcover. #12A. VG+. Scarce in this condition.

New York: Ballantine Books, 1974. 1st ed. Softcover. 1st ptg. of the paperback original edition, Ballantine #U2191. Crease to back cover, near fine.

London: Pan Books, 1954. Softcover. #286. 1st ths. Edgeworn, creases to front cover. VG.

Nightstand Books, 1961. 1st ed. Softcover. PBO. #1564. Fine.

New York: DAW, 1976. Krenkel, Roy. 1st ed. Softcover. Stated 1st ptg., cover art and illustrations by Roy Krenkel. #187. Farmer's translation and retelling of Rosny's original French adventure tale. 1/2" tear to cover else VG.

Derby, CT: Monarch Books, 1962. Softcover. PBO. 257. Scarce. F-.

Chicago: Newsstand Library, 1959. 1st ed. Softcover. PBO. U 114. Fine.

New York: Pyramid Library, 1974. Softcover. Trade paperback, Pyramid N3478. Very Fine.