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Purchase TWO eBooks in PDF format here.

$34.00 in Canadian dollars for 2 PDF downloads. Complete your purchase by clicking on the Buy Now button below. No shipping address required.

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"Your Light Pollution - The Sky-Glow Story"

    


"Your Light Pollution - The New Sky-Glow Spectra"

    


Download previews of each. Right-click and "Save Link As..": TSGS and TNSGS-2.



Purchase the individual PDF eBooks:

"The New Sky-Glow Spectra" or "The Sky-Glow Story".



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