McFarland - Gravity's Shadow - New paperback or softback - X555z

Bryson - Faith and Gravity - New paperback or softback - X555z

Lodge - Gravity Thief - New paperback or softback - X555z

Razma - Sakura in the Gravity - New paperback or softback - X555z

Cook - Gravity Cycle - New paperback or softback - X555z

Huang - Branes of Gravity - New paperback or softback - 42 - X555z

Fighting Gravity (Paperback or Softback)

Borders - Gravity of Silence - New paperback or softback - X555z