por Zane Grey, Max Brand, Clarence E. Mulford, William MacLeod Raine, B. M. Bower, August Nemo
por William MacLeod Raine, Edgar Rice Burroughs, Clarence E. Mulford, Zane Grey, Rex Beach, August Nemo
por Edgar Rice Burroughs, Clarence E. Mulford, Ernest Haycox, B. M. Bower, Andy Adams, August Nemo
por Zane Grey, Willa Cather, Owen Wister, Andy Adams, Clarence E. Mulford, August Nemo
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