Edgar Rice Burroughs

The Land That Time Forgot

A Princess of Mars

Tarzan of the Apes

A Princess of Mars

The Gods of Mars

The John Carter of Mars Collection (7 Novels + Bonus Audiobook Links)

The Land That Time Forgot

The People that Time Forgot (Unabridged)

Barsoom Series Collection: 7 John Carter Stories (Unabridged)

A Princess of Mars

The Tarzan Collection - 2 Full Audiobooks: Unabridged Audiobooks of "Tarzan of the Apes" (Book 1) and "The Return of Tarzan" (Book 2)

The Tarzan Collection: Books 1-3