Showing 1 - 2 results of 2 for search 'Percy,John R', query time: 0.01s Refine Results
  1. 1
    The study of variable stars using small telescopes
    by Percy,John R
    Published 1986
    Printed Book
  2. 2
    Study of variable stars using small telescope /
    Published 1986
    Other Authors: “...Percy, John R....”
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