The Efficiency Expert – Audiobook: The Efficiency Expert: Edgar Rice Burroughs' Workplace Adventures

At The Earth's Core – Audiobook: At The Earth's Core by Burroughs, Edgar Rice: Hollow Earth Adventure - Journeying through Burroughs' Inner World.

Tarzan and The Golden Lion – Audiobook: Tarzan and the Golden Lion: Edgar Rice Burroughs' Exciting Jungle Adventure

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