This image was created by Chris 73. The image is licensed under a dual license; please choose either of the two licenses below as desired. Attribution to Wikipedia or another project of the Wikimedia foundation is required for both licenses if the image is used outside of projects of the Wikimedia foundation. Attribution to me is not required.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. www.gnu.org/licenses/fdl-1.3.htmlGFDL 1.3GNU Free Documentation License 1.3truetrue

呢個檔案用共享創意 姓名標示-非商業性-相同方式分享3.0 未本地化版本條款授權。

姓名標示: Chris 73 / Wikimedia Commons

你可以：

• 去分享 – 複製、發佈同傳播呢個作品
• 再改 – 創作演繹作品

要遵照下面嘅條件：

• 署名 – 你一定要畀合適嘅表彰、畀返指向呢個授權條款嘅連結，同埋寫明有無改過嚟。你可以用任何合理方式去做，但唔可以用任何方式暗示授權人認可咗你或者你嘅使用方式。
• 相同方式分享 – 如果你用任何方式改過呢個作品，你必須要用返原本或者相似嘅條款發佈。

https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue

"I want to use the image. How do I do that?"

You can use this image freely for any purpose, including commercial use, provided that you license it under one of the above licenses. My suggestion is to use the following text:

This Wikipedia and Wikimedia Commons image is from the user Chris 73 and is freely available at //commons.wikimedia.org/wiki/File:NautilusCutawayLogarithmicSpiral.jpg under the creative commons cc-by-sa 3.0 license.

For privacy reasons please use only "Chris 73" as author. If necessary, please translate the text in your language. For electronic use please include the links in the text as shown, for printed use please print the text as shown. If you use the image I would appreciate it if you would let me know on my talk page, but this is not required as long as you follow one of the above licenses.