Space Imaging, L. (2003). Okonos: Imagery products and product guide. Colorado, U.S.A: Space Imaging.
Čikaški stil citiranjaSpace Imaging, LLC. Okonos: Imagery Products and Product Guide. Colorado, U.S.A: Space Imaging, 2003.
MLA način citiranjaSpace Imaging, LLC. Okonos: Imagery Products and Product Guide. Colorado, U.S.A: Space Imaging, 2003.
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