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Treatise on Light
by Huygens, Christiaan; Thompson, Silvanus P.; Gahan F.i.e., John
ISBN: 9781493513567
Copyright:
Paperback
Great Astronomers
by Ball, Robert S., Sir.; Gahan, John, F.i.e.
ISBN: 9781493545728
Kepler
by Bryant, Walther W.; Gahan F.i.e., John
ISBN: 9781492366102