Gustavo Adolfo Gonzalez


Joined: 22/08/2013

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Gustavo Adolfo Gonzalez's PowerPoint Presentations

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Recent Activity

gusgon58 commented on estebanortegacal's presentation "El Universo y el origen de la tierra"

99 months ago

Comment (1)

gusgon58 : Hola Esteban. he visto tus presentaciones y me gustar�a poder descargarlas para usarlas en mis clases.

99 months ago

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