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Spotted something wrong or missing on Strengthening And Insulating The Frame Wall: Project Four, Lesson One, Let's Practice = Reforzando Y Aislando La Pared De Marco: Proyecto Cuarto, Leccion Primera, Practiquemos (1978)? Tell us below. You don't need an account. An editor reviews every suggestion, and if it's accepted your name is added to the film's Sources list. Your email address is never shown publicly; we only use it if we have a question about your suggestion.