The Lost Continent by Edgar Rice Burroughs Vintage PB Never Read With Protector

At the Earths Core by Edgar Rice Burroughs Vintage PB Never Read With Protector

Pellucidar Edgar Rice Burroughs PB Ace F158

VINTAGE ACE F-158 PELLUCIDAR EDGAR RICE BURROUGHS VFN+/NM!

TANAR OF PELLUCIDAR BY EDGAR RICE BURROUGHS 1973 ACE PAPERBACK FRAZETTA COVER

Back To The Stone Age Edgar Rice Burroughs A Castaway In Pellucidar Vintage PB

Land of Terror Edgar Rice Burroughs Ace F-256 Frazetta Pellucidar PB VG

Edgar Rice Burroughs The Moon Men/The Moon Maid Pellucidar PB Ace Emsh