Knaster, Scott (February 15, 2005). "iPod shuffle Tips and Tricks". Mac OS X Excerpts. O'Reilly Media. Archived from the original on February 9, 2011. Retrieved April 11, 2011.
Knaster, Scott (February 15, 2005). "iPod shuffle Tips and Tricks". Mac OS X Excerpts. O'Reilly Media. Archived from the original on February 9, 2011. Retrieved April 11, 2011.