Fernando E. Valdes-Perez

By Fernando E. Valdes-Perez, Ramon Pallas-Areny

By Erick Valdés, Jacob Dahl Rendtorff

Edited By Gilmer Valdes, Lei Xing

Edited By Fernando Pérez-Rodríguez

By Alicia Valdés

By Jo Perez

Edited By Harold F. O'Neil, Eva L. Baker, Ray S. Perez, Stephen E. Watson

Edited By Harold F. O'Neil, Eva L. Baker, Ray S. Perez, Stephen E. Watson

Edited By Harold F. O'Neil, Eva L. Baker, Ray S. Perez

Edited By Harold F. O'Neil, Jr., Ray S. Perez, Harold F. O'Neil

By Mike Sharples, Rafael Pérez y Pérez

Edited By Hamidreza Ahmadian, Roman Obermaisser, Jon Perez