The Time Twisters (Avon SF, G-1231)
by Kevin Hancer
Category: Antiques & Collectibles

A reference guide to the prices of paperback collectible books and a bibliography of paperback imprints. Lists all mass market paperbacks published in the United States between 1939 and 1959 ; some publishers are listed through 1965. Includes selected Canadian, pre-1939 and post 1959 books based on colector interest. Lists over 30,000 entries under their imprint names and imprint code numbers.