1.6. References http://www.ck12.org
1.6 References
- Courtesy of NASA. http://spaceflight.nasa.gov/gallery/images/station/crew-26/html/s133e010411.html. Pub-
lic Domain - Gwilliams10; NASA; Mariana Ruiz Villarreal (LadyofHats); WriterHound; Ben Mills (Benjah-bmm27). http
://commons.wikimedia.org/wiki/File:BglIIactivesite.png; http://commons.wikimedia.org/wiki/File:Saturn_Sy
stemMontage-_GPN-2000-000439.jpg; http://commons.wikimedia.org/wiki/File:Diagram_cell_nucleusno-
text.svg; http://commons.wikimedia.org/wiki/File:Brain_090407.jpg; http://commons.wikimedia.org/wiki/File
:Ethanol-3D-vdW.png. CC-BY 3.0 - Hana Zavadska. CK-12 Foundation.
- User:Donovaly/Wikimedia Commons. http://commons.wikimedia.org/wiki/File:Metric_system.png. Public
Domain - Image copyright lana rinck, 2014; modified by CK-12 Foundation - Christopher Auyeung. http://www.shutt
erstock.com. Used under license from Shutterstock.com - Courtesy of the United States Mint. http://commons.wikimedia.org/wiki/File:2006_Nickel_Proof_Obv.png.
Public Domain - Christopher Auyeung. CK-12 Foundation.
- Christopher Auyeung. CK-12 Foundation.
- Christopher Auyeung. CK-12 Foundation.
- Christopher Auyeung, using penny image courtesy of the US Mint. CK-12 Foundation (penny image: http:
//commons.wikimedia.org/wiki/File:2005-Penny-Uncirculated-Obverse-cropped.png). - Ira Nirenberg. CK-12 Foundation.
- Ira Nirenberg. CK-12 Foundation.
- Ira Nirenberg. CK-12 Foundation.
- Ira Nirenberg. CK-12 Foundation.
- Raymond Chou. CK-12 Foundation.
- Raymond Chou. CK-12 Foundation.