10 titles
A Princess of Mars
Edgar Rice Burroughs · 1912
Tarzan of the Apes
Edgar Rice Burroughs · 1912
The Gods of Mars
Edgar Rice Burroughs · 1918
The warlord of Mars #3
Edgar Rice Burroughs · 1914
Thuvia, Maid of Mars
Edgar Rice Burroughs · 1916
At the Earth's Core
Edgar Rice Burroughs · 1914
The Return of Tarzan
Edgar Rice Burroughs · 1915
The Beasts of Tarzan (Classic Ace SF, F-203)
Edgar Rice Burroughs · 1914
Tarzan and the Jewels of Opar
Edgar Rice Burroughs · 1916
The Outlaw of Torn
Edgar Rice Burroughs · 1914
