The image is from Wikipedia Commons
- Census of Population and Housing. U.S. Census Bureau. [November 18, 2011].
- This page is based on the Wikipedia article 埃格兰 (北达科他州); it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA.