| ISBN | Autor | |
|---|---|---|
| M23-23567 | http://zapatosdemodayfiesta.blogspot.com/2012_03_01_archive.html | Sams 2005 |
| W24-56781 | http://www.fashiontv.com/ | Microsoft Development |
| C21-1003 | http://www.zapatos.org/categoria/tacones//td> | Fco Javier Zeballos |
| M21-0002 | http://tendencias.foroactivo.com/t1-pisando-tendencias | O'Reilly |
| A12-0034 | http://thehunteroffashion.blogspot.com/2011/01/la-vida-es-como-unos-tacones.html | Apache Group 2006 |