|Restrictions/ Citation of the dataset:||
All versions of Natural Earth raster + vector map data found on the Natural Earth website are in the public domain. You may use the maps in any manner, including modifying the content and design, electronic dissemination, and offset printing. The primary authors, Tom Patterson and Nathaniel Vaughn Kelso, and all other contributors renounce all financial claim to the maps and invites you to use them for personal, educational, and commercial purposes.
No permission is needed to use Natural Earth. Crediting the authors is unnecessary.