- Author: César Navarro Gallegos Manuel Pérez Rocha Tatiana Coll Lebedeff Antonia Candela
- Language: Spanish
- Year: 2017
Delfines y tiburones
epub
- Author: Manuel Pérez Alcázar
- Language: Spanish
- Year: 2015
- Author: Miguel Artola, Manuel Pérez Ledesma
- Language: Spanish
- Year: 2014
- Author: Miguel Artola Manuel Pérez Ledesma
- Language: Spanish
- Year: 2005
- Author: Juan Manuel Pérez Bermejo
- Language: Spanish
- Year: 2006
- Author: José Manuel Pérez Martín Ph.D. (auth.)
- Language: English
- Year: 2008
