In what year was the album “Déjà Vu” released by Crosby Stills Nash and Young?

In what year was the album “Déjà Vu” released by Crosby Stills Nash and Young?: The album “Déjà Vu” was released in 1970 by Crosby Stills Nash and Young, featuring 10 tracks.
What is the most successful song from the album “Déjà Vu” by Crosby Stills Nash and Young?: “Our House” is the biggest hit from the album “Déjà Vu” by Crosby Stills Nash and Young.

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