Lawrence Stenhouse
USD24.40
USD19.40
Rafael Porlán
USD28.80
Robert E. Stake
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Sonia Martín, Pilar Rodríguez Sánchez, Juan Carlos Blanco
Angela McRobbie
USD31.45
Michael Fullan
USD21.00
Edisson Cuervo Montoya, William Moreno Gómez
USD32.90