Vanishing night skies : the effects of light pollution on the National Park System : a survey by the National Parks and Conservation Association, March 1999
Vanishing night skies : the effects of light pollution on the National Park System : a survey by the National Parks and Conservation Association, March 1999 / prepared by David J. Simon and Scott R. Babcock.
Published
Tucson : National Optical Astronomy Observatories, Kitt Peak National Observatory, [1999].
Physical Description
20 p. : ill. ; 22 cm.
Notes
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