Ronald L. Disanto (Disanto, Ronald L.)

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  Guidebook to Zen and the Art of Motorcycle Maintenance
  by Robert M. Pirsig, Thomas J. Steele, Ronald L. Disanto
  Hardcover, W. Morrow, ISBN 0688084613 (0-688-08461-3)
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  Guidebook to Zen and the Art of Motorcycle Maintenance
  by Thomas J. Steele, Ronald L. Disanto
  Softcover, Harpercollins, ISBN 0688060692 (0-688-06069-2)