Hughes - Duality of Dark and Light - New paperback or softback - X555z

La Rae - Y.O.U. Your Own Universe - New paperback or softback - 63 - X555z

Towers - Beverly Duality - New paperback or softback - X555z

Monk - Inflicted Duality - New paperback or softback - X555z

Abercrombie - Duality The Dual Trinity - New paperback or softback - X555z

Anant - Duality - New paperback or softback - 20 - X555z

Betts Jr. - Duality Poems - New paperback or softback - X555z

Allen - Duality Principle - New paperback or softback - X555z