Não informado. Environmental satellite imagery. National Environmental Data Service.
Chicago-Zitierstil (17. Ausg.)Não informado. Environmental Satellite Imagery. Washington: National Environmental Data Service.
MLA-Zitierstil (8. Ausg.)Não informado. Environmental Satellite Imagery. National Environmental Data Service.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.