Omniglot: The online encyclopedia of writing systems & languages [online]. 2000-. http://www.omniglot.com/writing/nahuatl.htm (21 March 2014).

Omniglot: The online encyclopedia of writing systems & languages [online]. 2000-. http://www.omniglot.com/writing/nahuatl.htm (21 March 2014).