Lowell, J. D., Ruiz, J., Guilbert, J. M., & McDonald, L. (2014). Intrepid explorer: The autobiography of the world's best mine-finder. Sentinel Peak.
Chicago-čujuhus (17. p.)Lowell, J. David, Joaquin Ruiz, John M. Guilbert, juo Leigh McDonald. Intrepid Explorer: The Autobiography of the World's Best Mine-finder. Tucson, Arizona: Sentinel Peak, 2014.
MLA-čujuhus (9. p.)Lowell, J. David, et al. Intrepid Explorer: The Autobiography of the World's Best Mine-finder. Sentinel Peak, 2014.
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