Authors
Rita Vaz Rodrigues
Author - Spain
Robert Morrison
Author - United States
Robert Murray
Author - United States
Robert M. Stwalley
Author - United States
Robert V. Knox
Author - United States
Roberta Leite
Author - Brazil
Roberto Barea
Author - Spain
Roberto Santamaría
Author - Spain
Roberto Spelta
Author - Italy
Roberto MC Guedes
Author - Brazil
Rodney Butch Baker
Author - United States
Rodrigo de Lima Domingos
Author - Brazil
Roger Davin
Author - Netherlands
Rony Antonio Ferreira
Author - Brazil
Rosa Altisent Rosell
Author - Spain
Rosa Carabaño
Author - Spain
Rosa Colomé
Author - Spain
Rosa Gallart
Author - Spain
Rosa Pujol
Author - Spain
Rosa María Hernández López
Author - Spain
Rosario Bullido
Author - Spain
Roser Domènech Amado
Author - Belgium
Roser Sala Pallarès
Author - Spain
Rosil Lizardo
Author - Spain
Rossembert Olaya
Author - Colombia
Rossend Saltiveri
Author - Spain
Rovian Miotto
Author - Brazil
Rubèn Masnou i Ribas
Author - Spain
