editions of Tomorrow's Sphinx

Tomorrow's Sphinx (Hardcover)
by Clare Bell (Goodreads author)
avg rating: 4.44 (39 ratings)
isbn: 0689504020 (isbn13: 9780689504020)
published: 1986 by Margaret K. McElderry | binding: Hardcover | pages: 292

Tomorrow's Sphinx (Mass Market Paperback)
by Clare Bell (Goodreads author)
avg rating: 5.00 (6 ratings)
isbn: 0440201241 (isbn13: 9780440201243)
published: 1988 (first published 1986) by Laurel Leaf | binding: Mass Market Paperback