- Tytuł:
- Protecting America’s LAST DARK SKIES.
- Autorzy:
- Temat:
-
NATIONAL parks & reserves
STARS
INTERNATIONAL Dark-Sky Association
BARENTINE, John - Źródło:
- Astronomy. Jun2016, Vol. 44 Issue 6, p54-59. 6p. 6 Color Photographs, 1 Map.
- Terminy geograficzne:
-
GRAND Canyon (Ariz.)
UNITED States - Periodyk