| Author: | L. Sprague de Camp. | |
| Publisher: | Ballantine Books. | |
| Date of publication: | 1976. | |
| Format: | Paperback. | |
| ISBN: | 0345251156. | |
| Language: | English. | |
| Number of pages: | 480 pages. | |
| Size: | 7.3 x 4.1 inches. | |
| Original price: | $1.95. |
The paperback edition contains on the half-title page a drawing by Virgil Finlay.
The paperback edition is an abridged version of the original hardcover edition by Doubleday. About 13,000 words are removed according to the note in the Ballantine edition, together with the bibliography, the index, the notes, and other documentation.
