Edgar Rice Burroughs 
Edgar Rice Burroughs: The Complete Works [EPUB ebook] 

25 Complete Works of Edgar Rice Burroughs
A Princess of Mars
The Chessmen of Mars
The Gods of Mars
Thuvia, Maid of Mars
Warlord of Mars
At the Earth's Core
Out of Time's Abyss
Pellucidar
The Efficiency Expert
The Land That Time Forgot
The People That Time Forgot
The Lost Continent
The Mad King
The Monster Men
The Mucker
The Oakdale Affair
The Outlaw of Torn
Jungle Tales of Tarzan
Tarzan and the Jewels of Opar
Tarzan of the Apes
Tarzan the Terrible
Tarzan the Untamed
The Beasts of Tarzan
The Return Of Tarzan
The Son of Tarzan