Will Tirion (Tirion, Will)

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  How to Identify the Night Sky
  by Storm Dunlop, Will Tirion
  Softcover, HarperCollins Canada, Limited, ISBN 0007103611 (0-00-710361-1)
• 
  Sky Atlas 2000.0 Field Edition
  by Roger W. Sinnott, Will Tirion
  Softcover, Cambridge Univ Pr, ISBN 0521654300 (0-521-65430-0)
• 
  Sky Atlas 2000.0 Field Edition
  by Will Tirion
  Softcover, Sterling Pub Co Inc, ISBN 0933346328 (0-933346-32-8)