At the earth's core / by Edgar Rice Burroughs... Illustrated by J. Allen St. John.
| Author/creator | Burroughs, Edgar Rice |
| Format | Book |
| Publication Info | New York : Grosset & Dunlap, [1922] |
| Description | 277 pages : illustrations, plates. ; 20 cm. |
| Subjects |
| Series | The Pellucidar series ; 1 Burroughs, Edgar Rice, 1875-1950. Pellucidar series ; 1. UNAUTHORIZED |